Correct option is C
The correct option to fill in the blank is (c)
at ; for.
Explanation:
at is used for a
specific point/place (स्थान-वाचक बिंदु), e.g.,
at the gate, at the park entrance.
for denotes
duration of time (अवधि), e.g.,
for two days. Hence:
We camped
at
the Corbett National Park
for
two days.
Example:
They stayed
at
the beach resort
for
a week.
Why other options are incorrect:
· (a)
in ; on —
on two days is unnatural for duration; use
for two days.
· (b)
on ; from —
on the Corbett National Park is wrong;
from two days is incorrect for duration.
· (d)
for ; in —
for the Corbett National Park (wrong preposition for place) and
in two days indicates “after two days,” not duration of camping.
Information booster:
·
at → point/venue (
at school, at the museum).
·
in → enclosed area/city/country (
in India, in a forest).
·
on → surface/day (
on the table; on Monday).
·
for + period → duration (
for two hours/days).