Mark against the correct answer in each of the following:
Question:

Mark $(\sqrt{)}$ against the correct answer in each of the following:

$\int x^{3} \cos x^{2} d x=?$

A. $x^{2} \sin x^{2}+\cos x^{2}+C$

B. $\frac{1}{2} x^{2} \sin x^{2}+\frac{1}{2} \cos x^{2}+C$

C. $-\frac{1}{2} x^{2} \sin x^{2}+\frac{1}{2} \cos x^{2}+C$

D. none of these

Solution:

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