It Is Difficult to Say That IQ Tests Predict Career

It is difficult to say that IQ tests predict career success in a definitive way because __________.

A) most real-world problems are often complicated and do not have the kind of simple, definite solutions IQ tests reward
B) IQ exams lack the ability to measure a person's working memory and IQ accurately
C) most IQ questions are too complex and cannot be applied to everyday situations
D) most IQ tests are given in a group format, and this does not lend itself to measuring a person's ability to manage his or her social environment