For j(x) = 4ˣ⁻², find j(x + h) - j(x)/h
a. 4ˣ⁻² (4ʰ)/h
b. 4ˣ⁻²(4ʰ +1)/h
c. 4ˣ⁻² (4ʰ-1)/h
d. (x-2)(4ʰ +1)/h