Simplify the following expression in terms Of fractional exponents and write it in the form 10 ᵃ xᵇ.

4√10⁵x

A. 10⁵/4 x¹/⁴
B. 10⁴ x⁴/⁵
C. 10⁴ /5 x⁴
D. 10⁴/⁵ x¹/⁴