Classify each series as absolutely Convergent, Conditionally Convergent, or Divergent.

(a) $\displaystyle \sum_{k=1}^{\infty} \frac{\left(-3\right)^{k}}{k^{2}}$ ? Absolutely Convergent Conditionally Convergent Diverges

(b) $\displaystyle \sum_{k=1}^{\infty}\frac{(-1)^{k+1} }{\left(k+5\right)! }$ ? Absolutely Convergent Conditionally Convergent Diverges