What is the medical specialty that studies the characteristics and uses of radioactive substances in diagnosis of disease?

a. ultrasonography

b. radiology

c. radiation oncology

d. nuclear medicine?

Radiology are the medical specialty that study the characteristic and uses radioactive substances of diseases. They use medical imagining to diagnose and sometimes also treat diseases within the body. They use the technique such as x-ray, radiography, ultrasound, computed tomography and magnetic resonance imagining