3. Which of the following statements would represent an evolutionary selective advantage for the lambda virus?
   
   
   1. Upon damage to the host E. coli cell, a lambda provirus can excise itself and enter the lytic pathway.
      
   2. Lambda does not always kill its host cell immediately.
      
   3. Lambda DNA is almost completely resistant to mutation.
      
      
      
   1. I only
   2. II only
   3. I and II only
   4. I, II, and III only