Assertion (A):The Moon appears bigger than the Sun.Reason

Assertion (A):
The Moon appears bigger than the Sun.
Reason (R1):
The Moon is bigger in size than the Sun.
Reason (R2):
The Sun is bigger in size than the Moon.

1. If only reason 1 (R1) and not reason 2 (R2) is the reason for the assertion (A).
2. If only reason 2 (R2) and not reason 1 (R1) is the reason for the assertion (A).
3. If both (R1) and (R2) are reasons for the assertion (A).
4. If neither (R1) nor (R2) is the reason for the assertion (A).

The Sun is bigger in size than the Moon, but that is not the reason for the Moon to appear bigger. it is proximity of the Moon to the Earth.