The correct option is D Certain types of cancer
Electron beam therapy
Electron beam therapy is the use of electron beams to treat cancers that are superficial in nature like skin cancer. Since electrons do not travel to deeper tissues, they do not get harmed.
Treatment for enlarged prostate
Enlarged prostate can be treated with medicines like alpha-blockers, lifestyle changes or surgery.
Treatment for gallstones
Gallstones are removed by breaking them by using shock waves or by using medicines like Ursodiol and chenodiol .
Treatment for kidney stones
Kidney stones can be removed by surgery or shock wave treatment.
Hence the correct option is (c).