As the Spanish flu progressed across the United States, a unique characteristic that emerged was that the disease...
a) seemed to be without symptoms at the end
b) killed mostly young, healthy adults
c)struck a disproportionate number of people in new england
d) killed a disproportionate number of women

B

Explanation:

polling is a process and the outcome is not involved in the process itself.

the outcome, which is an unfavorable rating for a particular candidate is not affected by the mechanical process of polling.

it rather depends on the number of people voting in favor of the candidate.

this is an outcome of people's preferences.

what are the others?