A Regression Analysis of Company Profits and the Amount of Money

Multiple Choice

A regression analysis of company profits and the amount of money the company spent on advertising found $r^{2}=0.72$ . Which of these is true?
I. The model can correctly predict the profit for 72% of companies.
II. On average, about 72% of a company's profit results from advertising. III. On average, companies spend about 72% of their profits on advertising.

A) II only
B) none
C) I and III
D) I only
E) III only