What Distinguishes Expression Vectors from Other Cloning Vectors

Multiple Choice

What distinguishes expression vectors from other cloning vectors?

A) Expression vectors do not have an origin of replication.
B) Only expression vectors have origins of replication.
C) Expression vectors contain regulatory sequences to allow transcription and translation of an inserted gene.
D) Inserted genes cannot be transcribed from an expression vector.
E) Expression vectors do not contain antibiotic resistance genes.