Ans: A
$\begin{array}{cl}
& \text{BC}000\text{DE}000000_{16} \\
= & 11 \times 16^{12} + 12 \times 16^{11} + 13 \times 16^7 + 14 \times 16^6 \\
= & (11 \times 16 + 12) \times 16^{11} + (13 \times 16 + 14) \times 16^6 \\
= & 188 \times 16^{11} + 222 \times 16^6
\end{array}$
$\begin{array}{cl}
& \text{BC}000\text{DE}000000_{16} \\
= & 11 \times 16^{12} + 12 \times 16^{11} + 13 \times 16^7 + 14 \times 16^6 \\
= & (11 \times 16 + 12) \times 16^{11} + (13 \times 16 + 14) \times 16^6 \\
= & 188 \times 16^{11} + 222 \times 16^6
\end{array}$
