He/she is talking about genetic disorders. Interesting topic. An oncologist is a cancer specialist so I don't know the specific cancer disorder but I'm sure there is one.
One of the components of the auditory system is the malleus incus and stapes that make up the auditory ossicles. Osteogenesis Imperfacta is a genetic disorder that affects the proper formation of connective tissue in the body.
Bones, on the one hand, are constituted by connective tissue. The disorder will consequently affect the formation and integrity of the auditory ossicles, therefore, leading to hearing loss.
1 L is equal to 0.001 m³ there for the answer is (False)