If influenza acquired by sharing a drinking glass, then the glass was acting as a:. a. vector.
b. reservoir.
c. vehicle.
d. fomite.

Option C.

Vehicle

Explanation:

It is vehicle because, vehicle is a non living source that serve as an agents or carrier if infectious diseases and that infect or affect many people.

In this case a drinking glass of water is a non living source because it is does not have life and the pathogens that causes influenza are in it and as people begin to share the drinking glass of water, the pathogens are transmitted and they have influenza.

when atoms of different types of elements join together, they make molecules called compounds. water consists of compound molecules made up of 2 hydrogen atoms and 1 oxygen atom. this is why it's called h2o. water will always have 2 times the number of hydrogen atoms as oxygen atoms.