If h(x)=f(g(x))h(x) = f(g(x))h(x)=f(g(x)), and we know f′(2)=4,g(3)=2,g′(3)=5f'(2) = 4, g(3) = 2, g'(3) = 5f′(2)=4,g(3)=2,g′(3)=5, find h′(3)h'(3)h′(3).
9
20
10
12