A psychologist has found a correlation of +.54 between measures of need for achievement and college ...

A psychologist has found a correlation of +.54 between measures of need for achievement and college grade point average. Given this knowledge, you would expect that .
 
  a. higher need for achievement scores are associated with higher college grade pointaverages
 b. higher need for achievement scores are associated with lower college grade pointaverages
 c. there is no relationship between need for achievement and college grade pointaverage
 d. if you knew a student's need for achievement score, you could predict thestudent's grade point average perfectly