Silas Took the College Aptitude Test (CAT)when He Was in Grade

Silas took the College Aptitude Test (CAT) when he was in Grade 11,and he attained a very high score on the test.When Silas was in college,he was suspended his first year,and when he was readmitted,he ended up dropping out because he was doing poorly in all his classes.When Silas went for career counselling,he retook the CAT,and again he earned a very high score.Based on Silas's experience,what might you suggest about the CAT

A)  It has high reliability, but low validity. 
B)  It has low reliability, and low validity. 
C)  It has content validity, but low construct validity. 
D)  It has been poorly standardized.