Retroviral Vectors Can Be Advantageous Over Liposomes for Stable Introduction

Multiple Choice

Retroviral vectors can be advantageous over liposomes for stable introduction of DNA into animal cells because

A) retrovirus infected cells are more readily selectable.
B) one step in the viral life cycle is integration of its DNA into the host genome.
C) they allow insertion of larger DNA molecules.
D) All of the above