Irradiated mice given a stimulatory antigen fail to mount an adaptive immune response. A robust response can be restored by:

A bone marrow transplant (BMT)

Explanation:

An irradiated mouse would have immune hypocellularity or acellularity.  A BMT would replenish its immune system to mount a robust immune response.

what in the weirdo : o

answer; (a) medicalized;