Answer:
Options B
Step-by-step explanation:
The graduate's annual income is a good predictor of the amount of money he or she would be willing to donate" suggests that
A. Size of donation to the annumal fund is the response variable. [CORRECT]
C. annual income is an explanatory variable [CORRECT
Also, as "there is a reasonably strong, positive, linear relationship between these variables" suggests,
D. The correclation between annual income and size of donation is positive [CORRECT]
Hence, all choices are correct.