How does the author develop the central idea of the negative impact of pollen?
Responses

by emphasizing the rising number of allergy sufferers
by emphasizing the rising number of allergy sufferers

by comparing the effects of pollen to other chronic illnesses
by comparing the effects of pollen to other chronic illnesses

by clarifying the severe health risks associated with pollen
by clarifying the severe health risks associated with pollen

by describing the daily experiences of allergy sufferers
by describing the daily experiences of allergy sufferers