Which statement about $\rho$ -independent termination of RNA transcription in E. coli is TRUE?

A) The RNA transcript contains self-complementary sequences.
B) There are three conserved A's in the template strand near the end of the transcript.
C) There is a CA-rich sequence near the end of the transcript.
D) The RNA transcript contains self-complementary sequences, and there are three conserved A's in the template strand near the end of the transcript.
E) The RNA transcript contains self-complementary sequences, and there is a CA-rich sequence near the end of the transcript.