Me with this! i'd appreciate it. i'm willing to give brainliest. (:

The answer to your question is The third one

Explanation:

First one: is a polar molecule because oxygen is a large atom compared  with hydrogen that causes dipoles.

Second one: it's a polar molecule, we can see that it is polar for the 2 points next to nytrogen.

Third one: it's a non polar molecule.

Fourth one: it's a polar molecule, the explanation is the same that water.

h let me think

i don't know people like to fight everywhere rip.