What tells a cell what to do?\nOptions:\n- (A) electricity\n- (B) proteins\n- (C) A computer\n- (D) Energy\n- (E) nerves\n- (F) sweating\n- (G) heat energy\n- (H) Energy.
Use reasoning to answer the following question.
(B)
Molecules of DNA are encoded with instructions that tell cells what to do.

DNA encodes the information for protein sequences.

Proteins tell cells what to do.

.

So, the answer is (B)