Radioisotopes and Ionizing Radiation I

Multiple Choice

Radioisotopes and ionizing radiation I.allow us to develop high resolution images of some tissues.
II) were hypothesized for medical use over a century ago.
III) can induce apoptosis in cancerous tissues.
IV) are always selective for cancerous tissues.

A) I and III
B) II and IV
C) I,II,and III
D) I,II,III,and IV