Find the Requested Value $( g \mathrm {~g} ) ( 4 )$

Multiple Choice

Find the requested value.
-Using the given tables, find $( g \mathrm {~g} ) ( 4 )$
$\begin{array}{l}\begin{array}{l|r|l|r|r}\mathrm{x} & 4 & 7 & 5 & 10 \\\hline \mathrm{f}(\mathrm{x}) & 5 & 8 & 19 & 21\end{array}\\\begin{array}{l|r|r|r|r}\mathrm{x} & 6 & 10 & 4 & 5 \\\hline \mathrm{g}(\mathrm{x}) & 11 & 7 & 10 & 9\end{array}\end{array}$

A) 7
B) 9
C) 19
D) 21