Question

3. What is bodhisattva?

O a religious teacher who instructs others about the eightfold path

O a traveling poet who shares teaches of the Buddha

O A Buddhist missionary who is close to achieving nirvana

O A person who delays nirvana to continue doing good on Earth

Answer 1

O A person who delays nirvana to continue doing good on Earth

In Buddhism, a bodhisattva is any person who is on the path towards Buddhahood. In the Early Buddhist schools as well as modern Theravada Buddhism, a bodhisattva refers to anyone who has made a resolution to become a Buddha and has also received a confirmation or prediction from a living Buddha that this will be so.

(in Mahayana Buddhism) a person who is able to reach nirvana but delays doing so out of compassion in order to save suffering beings.

Answer 2

I looked it up, I think, it's the last one, it seems.