Which Statement About Prokaryotes Is True

Multiple Choice

Which statement about prokaryotes is true?

A) They generally live in static environments.
B) The most efficient means of regulation of gene expression in these organisms is usually at the posttranslational level.
C) By making certain proteins only when needed,they save energy and other resources.
D) They lack the ability to react to their environment through gene expression.
E) They lack the ability to regulate their gene expression.