$(8$pts$)$ If ${\displaystyle \underset{n=0}{\overset{}{}}}{c}_n{x}^n$ converges for $x=-3$ and diverges for $x=6,$ what $($if anything$)$ can we say about the convergence or divergence or the series for the following values of $x?$ Circle one.

$C=$ convergence, $D=$ divergence,$N=$ not enough information to determine.

a$)x=3$

C D N

b$)x=-7$

C D N

c$)x=-2$

C D N

d$)x=1$

$CDN$