Suppose That the RNA Sequence Shown Here Is a Target $5^{\prime}-\text { AAUGCUACG-3' }$

Suppose that the RNA sequence shown here is a target for a microRNA. 5'-AAUGCUACG-3'
Which of these double-stranded precursor RNA molecules could be processed for incorporation into RISC to target the sequence?

A) $5^{\prime}-\text { AAUGCUACG-3' }$
$3^{\prime}-\text {UUACGAUGC-5' }$
B) $\begin{array}{l}5^{\prime}-\text {UUACGAUGC-3' } \\3^{\prime}-\text {AAUGCUACG-5' }\end{array}$
C) $\begin{array}{l}5^{\prime}-\text {CGUAGCAUU-3' } \\3^{\prime}-\text {GCAUCGUAA-5' }\end{array}$
D) $\begin{array}{l}5^{\prime}-\text {GCAUCGUAA-3' } \\3^{\prime}-\text {-CGUAGCAUU-5' }\end{array}$