Examine the Two Series Below for Absolute Convergence (A), Convergence $\sum _ { n = 1 } ^ { \infty } ( - 1 ) ^ { n }$

Examine the two series below for absolute convergence (A) , convergence that is not absolute (C) , or divergence (D) .
1) $\sum _ { n = 1 } ^ { \infty } ( - 1 ) ^ { n }$
2) $\sum _ { n = 1 } ^ { \infty } ( - 1 ) ^ { n - 1 } n ^ { - 1 }$

A) 1A, 2A
B) 1A, 2C
C) 1A, 2D
D) 1C, 2A
E) 1C, 2C
F) 1C, 2D
G) 1D, 2A
H) 1D, 2C

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