In the Roundworm C

In the roundworm C.elegans,the lin-4 gene produces an RNA that forms a hairpin structure.One of the strands in the double-stranded region of lin-4 hairpin RNA is complementary to the mRNA of a protein-coding gene,lin-14.Predict the effect of expressing lin-4 RNA during development.

A) The lin-14 expression will fall when lin-4 expression begins.
B) The lin-14 expression will rise when lin-4 expression begins.
C) The lin-4 RNA will bind the promoter of the lin-14 gene,destroying the lin-14 gene.
D) The lin-4 RNA will bind to the enhancer of lin-14,increasing lin-14 transcription.