Physics · Nuclear Physics

All of the above are uses of radiation; it is a factual recall from the textbook. 

While sterilization and food preservation are common uses of radiation, they are not the only uses.

Radiography is indeed a use of radiation in medical imaging, but there are other applications as well.

Polymerization is a process that can use radiation, but radiation has broader applications.

Both sterilization and radiography are uses of radiation, but this option omits polymerization.

All listed processes—polymerization, sterilization, and radiography—are valid uses of radiation, demonstrating its diverse applications across various fields.