Why Is the Use of RNAi as a Means for Blocking

Multiple Choice

Why is the use of RNAi as a means for blocking RNA translation preferred over the use of antisense RNA?

A) RNAi can be used with DNA chips.
B) Only RNAi can be used to test cause-and-effect relationships.
C) RNAi is more stable than antisense RNA.
D) RNAi is single-stranded and thus easier to produce.
E) None of the above