Provide an Appropriate Response $\left(x^{2}+2\right) d x$ , and We Let $u=x^{2}+2$

Multiple Choice

Provide an appropriate response.
-Suppose we wish to use a substitution to find $\left(x^{2}+2\right) d x$ , and we let $u=x^{2}+2$ . Which of the following would be the correct results?
i. $\int u d u$
ii. $\int\left(\frac{u}{2}\right) d u$
iii. $\int(u-2) d u$

A) Both i and iii
B) Only i
C) Only ii
D) None of these is correct.