Linda Evans was my best friend -like the sister I never had ,We did everything to-- gether :piano lessons ,movies, swimming , horseback riding. When I was 13, my family moved away , Linda and I kept in touch through letters ,and we saw each other on special times - like my wedding and Linda's. Soon we were busy with childern and moving to new homes, and we wrote less often , One day a card that I sent came back , stamped "Address Unknown", I had no idea about how to find Linda. Over the years, I missed Linda very much, I wanted to share happiness of my children and then grandchildren , And I needed to share my sadness when my brother and then moth-er died, There was an empty place in my heart that only a friend like Linda could fill. One day, I was reading a newspaper when I noticed a photo of a young woman who looked very much like Linda and whose last name was Wagman --Linda's married name."There must be thousands of Wagmans."I thought, but I still wrote to her. She called as soon as she got my letter, "Mrs , Tobin!"she said excitedly, "Linda Ev-ans Wagman is my mother." Minutes later I heard a voice that I recognized at once, even after 40 years ,We laughed and cried and caught up on each other's lives, Now the empty place in my heart is filled, And there's one thing that Linda and I know for sure; We won't lose each other again! They haven't kept in touch  _  .
for about 40 years for about 27 years since they got married since the writer's family moved awasy
Question: Linda Evans was my best friend -like the sister I never had ,We did everything to-- gether :piano lessons ,movies, swimming , horseback riding. When I was 13, my family moved away , Linda and I kept in touch through letters ,and we saw each other on special times - like my wedding and Linda's. Soon we were busy with childern and moving to new homes, and we wrote less often , One day a card that I sent came back , stamped "Address Unknown", I had no idea about how to find Linda. Over the years, I missed Linda very much, I wanted to share happiness of my children and then grandchildren , And I needed to share my sadness when my brother and then moth-er died, There was an empty place in my heart that only a friend like Linda could fill. One day, I was reading a newspaper when I noticed a photo of a young woman who looked very much like Linda and whose last name was Wagman --Linda's married name."There must be thousands of Wagmans."I thought, but I still wrote to her. She called as soon as she got my letter, "Mrs , Tobin!"she said excitedly, "Linda Ev-ans Wagman is my mother." Minutes later I heard a voice that I recognized at once, even after 40 years ,We laughed and cried and caught up on each other's lives, Now the empty place in my heart is filled, And there's one thing that Linda and I know for sure; We won't lose each other again! They haven't kept in touch  _  .
A. for about 40 years
B. for about 27 years
C. since they got married
D. since the writer's family moved awasy
Answer: