Ans: A
$\begin{array}{cl}
& 1~0100~1000~1001_2 \\
= & 2^{12}+2^{10}+2^7+2^3+2^0 \\
= & 2^{12}+2^{10}+137
\end{array}$
$\begin{array}{cl}
& 1~0100~1000~1001_2 \\
= & 2^{12}+2^{10}+2^7+2^3+2^0 \\
= & 2^{12}+2^{10}+137
\end{array}$
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