Answer:
many ... stationary
Explanation:
Stationery = paper to write letters on.
Eliminate the stationery choices.
Many is used to refer to things that are countable.
Cyclists are countable.
A. many . . . stationary
many ⇒ a large number of
much ⇒ a large amount
stationary ⇒ fixed or stable
stationery ⇒ relating to paper
