For Which Value Of $x$ Does $10 + 7 x - 4 x ^ { 2 }$

Multiple Choice

For which value of $x$ does $10 + 7 x - 4 x ^ { 2 }$ reach a maximum? Restrict your attention to the horizontal span of 0 to 7.

A) 2.18
B) 13.06
C) 0.88
D) 16.19