For Which Value Of $x$ Does $4 x ^ { 2 } - 10 x + 15$

Multiple Choice

For which value of $x$ does $4 x ^ { 2 } - 10 x + 15$ reach a minimum? Restrict your attention to the horizontal span of 0 to 10.

A) 15
B) 8.75
C) 1.25
D) 0