Question

what does the word emit mean?
to send something off; to give off
to call something off
to measure something

Explanation:

The word "emit" means to release or give off something (like light, sound, gas, etc.). The first option "to send something off; to give off" matches this definition. "To call something off" means to cancel, and "to measure something" is unrelated to the meaning of "emit".

Answer:

A. to send something off; to give off