Question

Which underlined gerund functions as the object of a preposition?
A.''Hiking'' is now Death Valley’s greatest tourist activity.
B.The valley later became a center of ''mining'' for borax.
C.When you visit, avoid ''hiking'' in the midday sun.
D.Because of the heat, frequent ''resting'' is advised

Answer 1

I believe it's A ..

Answer 2

THANKS