Find the Specified Probability $P ( X \geq 8 )$

Multiple Choice

Find the specified probability.
-Use the special addition rule and the following probability distribution to determine $P ( X \geq 8 )$ .
$\begin{array}{cccccccc}\mathrm{X} & 5 & 6 & 7 & 8 & 9 & 10 & 11 \\\hline \mathrm{P}(\mathrm{X}=\mathrm{x}) & 0.05 & 0.05 & 0.20 & 0.15 & 0.15 & 0.10 & 0.30\end{array}$

A) $0.45$
B) $0.15$
C) $0.70$
D) $0.30$