Verified Answer :

I=\(\frac{PRT}{100}\)
i=\(\frac{300*7*2}{100}\)
i=\(42.00 dollars\)

To answer the question, I assume that the investment has a simple interest. The interest is calculated by the equation,
                             i = P x r x t
Substitute the given values,
                             i = ($300) x 0.07 x 2
The value of i is $
42. Thus, the answer is letter B. $42.00.