Which best explains whether a triangle with side lengths 2 in., 5 in., and 4 in. is an acute triangle? A. The triangle is acute because 22 + 52 > 4²
B. The triangle is acute because 2 +4> 5
C. The triangle is not acute because 22 +42 < 5²
D. The triangle is not acute because 22 <42 +5²