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Conditional Convergence of Series
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Given the series $$S = \displaystyle\sum_{n=1}^{\infty} \frac{(-1)^{n+1}}{n}$$, which of the following series has the same convergence behavior as $$S$$?

I. $$\displaystyle\sum_{n=1}^{\infty} \frac{(-1)^{n+1}}{2n}$$

II. $$\displaystyle\sum_{n=1}^{\infty} \frac{(-1)^{n+1}}{n + \sin(n)}$$

III. $$\displaystyle\sum_{n=1}^{\infty} \frac{(-1)^{n+1}\sqrt{n}}{n^{3/2}}$$

A

$$\text{I and II only}$$

B

$$\text{All three series}$$

C

$$\text{I and III only}$$

D

$$\text{I only}$$

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