Experiments Using Temperature-Sensitive Mutants of RSV to Infect Chicken Embryo

Experiments using temperature-sensitive mutants of RSV to infect chicken embryo fibroblasts demonstrated that

A) Infection with RSV is necessary to initiate transformation of these cells,but the RSV genome is not needed to maintain the transformed state.
B) The RSV transforming gene is necessary for both the initiation and maintenance of transformation in these cells.
C) Infection with RSV alone is unable to transform these cells.
D) Cells infected with RSV continue to exhibit normal cellular morphology.
E) None of the above.