Which of the following is true according to the last paragraph?A.The approaches mentioned
Which of the following is true according to the last paragraph?
A.The approaches mentioned in the passage has long been used to cancer.
B.Alterations in cancer cells is still an experimental approach to healing cancer.
C.Researchers can already design highly selective therapies to cancer treatment.
D.Oncologists have made a thorough research on the fundamental processes in tumors.