In a civil suit by Pine against Decker, Decker called Wall, a chemist, as an expert witness and asked him a number of questions about his education and experience in chemistry. Over Pine's objection that Wall was not shown to be qualified in chemistry, the trial court permitted Wall to testify as to his opinion in response to a hypothetical question. On cross-examination, Pine asked Wall if he had failed two chemistry courses while doing his graduate work. The answer should be
admitted, because it is relevant to the weight to be given to Wall's testimony.  admitted, because specific acts bearing on truthfulness may be inquired about on cross-examination.  excluded, because the court has determined that Wall is qualified to testify as an expert.  excluded, because Wall's character has not been put in issue
Question: In a civil suit by Pine against Decker, Decker called Wall, a chemist, as an expert witness and asked him a number of questions about his education and experience in chemistry. Over Pine's objection that Wall was not shown to be qualified in chemistry, the trial court permitted Wall to testify as to his opinion in response to a hypothetical question. On cross-examination, Pine asked Wall if he had failed two chemistry courses while doing his graduate work. The answer should be
A. admitted, because it is relevant to the weight to be given to Wall's testimony. 
B. admitted, because specific acts bearing on truthfulness may be inquired about on cross-examination. 
C. excluded, because the court has determined that Wall is qualified to testify as an expert. 
D. excluded, because Wall's character has not been put in issue
Answer: