(B) Given that $f(x) = x$ and $g(x) = \sin x$. First,we find the composite function $f(g(x))$: $f(g(x)) = f(\sin x) = \sin x$. Now,we evaluate the int

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(B) Given that $f(x) = x$ and $g(x) = \sin x$. First,we find the composite function $f(g(x))$: $f(g(x)) = f(\sin x) = \sin x$. Now,we evaluate the integral: $\int f(g(x)) \, dx = \int \sin x \, dx$. Using the standard integral formula $\int \sin x \, dx = -\cos x + c$,we get: $\int f(g(x)) \, dx = -\cos x + c$.