Which One of the Following Is a Question About the Construct

Which one of the following is a question about the construct validity of an assessment instrument?

A) Does a teacher-developed test of algebraic reasoning measure what students have learned in their algebra class?
B) Does a teacher-developed test of algebraic reasoning predict students' performance in the calculus class that they will take the following year?
C) Does an instrument called the "Test Anxiety Scale" actually measure test anxiety?
D) Does a performance test in instrumental music tap a representative sample of how much students have learned in their instrumental music class?