Patients in Need of an Organ Transplant Often Require Years

Patients in need of an organ transplant often require years of weekly treatments to keep them healthy until a compatible organ is found. Because such maintenance care may last for years, what can be said about the elasticity of treatment for these patients?

A) The demand for treatment is more elastic than would be the case for an ailment that required stitches in a single office visit because of the long time horizon.
B) The demand for treatment is more inelastic than would be the case for an ailment that required stitches in a single office visit because of the long time horizon.
C) The demand for treatment is neither elastic nor inelastic.
D) The demand for treatment is more elastic because of its necessity.
E) The demand for treatment is more inelastic due to the fact that the supply of treatment is limited.