D is the sentence where it is used as an interjection. All the other answers use it as a pronoun.
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Answer: 3 asking for clarification
Explanation:
The functions of the mentioned expressions is asking for clarification. When someone asks for clarification, it simply means that they are being asked to say something so as to get more information regarding a particular thing and thereby understand better.
Based on the question, the person wants to get clarification regarding number 10 as they've different numbers.
This sentence means a character had decided upon a certain action for a problem in their head. however other characters (the peers in this example) bestowed an act of kindness or "did something nice" for this other characters in hopes that he/she would change their mind. A good example would be if you upset your parent by acting up and they said no to a sleepover. you would do chores or act kindly towards them in order to try to get them to change their mind and say yes.
Answer: b. This man just witnessed a horrible car accident on his way home from work.
The most likely scenario is that this man just witnessed a horrible car accident on his way home from work. We can assume this because the man has a horrified expression. Moreover, he is wearing clothes that would be suitable at an office. All of the other options in the question are illogical when compared to the picture.