Cancer cells are able to confer a growth advantage in many ways. Which of the following mechanisms do cancer cells use to grow uncontrollably?
1. They have the ability to escape the immune system.
2, They activate apoptosis.
3. They increase angiogenesis (production of new blood vessels).
4. They increase the number of passenger mutations.
A. 1, 2 and 3
B. 1 and 3
C. 2 and 4
D. 4 only
E. All of 1, 2, 3 and 4 are correct.