Write the Word or Phrase That Best Completes Each Statement $$y = \frac { 5 } { 2 } x ^ { 2 } + \frac { 5 } { 2 } x + 45$$

Write the word or phrase that best completes each statement or answers the question.
-A company has sales (measured in millions of dollars) of 50, 60, and 75 during the first three consecutive years. Find a quadratic function that fits these data, and use the result to predict the sales during the fourth year.
Assume that the quadratic function is of the form y = ax2 + bx + c

A) $$y = \frac { 5 } { 2 } x ^ { 2 } + \frac { 5 } { 2 } x + 45$$ 45; sales during the fourth year = $95 million
B) $$y = - 5 x ^ { 2 } + 40 x + 15$$ 15; sales during the fourth year = $95 million
C) $$y = 5 x ^ { 2 } + 5 x + 40$$ 40; sales during the fourth year = $180 million
D) $$y = \frac { 15 } { 2 } x ^ { 2 } - \frac { 25 } { 2 } x + \frac { 325 } { 4 }$$ ; sales during the fourth year = $151.25 million