Select the most appropriate option to fill in the blank.
The sun rises ________ the east.

Correct option is D

The correct option to fill in the blank is (d) in.
Explanation: We use the preposition in with cardinal directions to denote general location: in the east / in the west (पूर्व/पश्चिम में). Thus, “rises in the east” is the standard idiomatic expression.
Example: Stars appear in the sky in the east during early evening in winter.
Why other options are incorrect:
· by — proximity/agent (के पास/द्वारा); not used with directions.
· at — point location/time (पर/को); not with broad areas like directions.
· on — surface/contact (पर); not for general directional region.
· Information booster: Use to the east of for relative position (e.g., Nepal is to the east of …), but in the east for a broad region.