I need an answer asap you will be mark brainiest

It's the third option

Explanation:

It's the third option because (which is 1 nitrogen gas) + (which is 3 hydrogen gas) = (which is 2 nitrogen hydrogen gas) so thus it's the 3rd option

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most likely the answer would be a.) cupidity

definitions:

cupidity - greed for money or possessions

hydrophobia - extreme or irrational fear of water, especially as a symptom of rabies in humans

pathology - the science of the causes and effects of diseases, especially the branch of medicine that deals with the laboratory examination of samples of body tissue for diagnostic or forensic

patho -   relating to disease