Letter A in my opinion, correct me if i happened to be sort of wrong... or wrong
Answer:
It's the third option
Explanation:
<u>It's the third option because </u>
<u> (which is 1 nitrogen gas) + </u>
<u>(which is 3 hydrogen gas) = </u>
(<u>which is 2 nitrogen hydrogen gas) so thus it's the 3rd option</u>
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<u>I hope that my answer helped you and I'd really appreciate it if you mark my answer the brainliest! :)</u>
The answer is their. Their is when something belongs to them.
They're: They are
There: Over THERE
Their: belongs to someone
Answer is D