The answer to this question is D adjective
Allusion, which is a figure of speech<span> in which you covertly or indirectly refer to an object or circumstance, like the analogy between a disease and the spread of happiness.</span>
I believe that the best answer for this question would be sanguine. People who fall under the category of the sanguine temperament tend to be lively, pleasure-seeking, talkative, and highly social. They can easily fall in love and may be flighty and forgetful. You can also reach this conclusion by ruling out the others; choleric individuals are angry and impulsive, melancholic individuals are introverted and solemn, and phlegmatic individuals are thoughtful and calm. Hope this helps.
Unfortunately I can't see the picture or passage this question is about. Can you try typing it in the comments?