The correct answer is: B. were
The sentence “If I were you I would not stand this humiliation” is an example of the conditional mood. The conditional mood is used to talk about things that are not real or possible. In this case, the speaker is saying that if they were in the other person’s position, they would not stand being humiliated.
The verb “to be” has different forms in the conditional mood. The simple past form, “were,” is used for all subjects. The other options, “am,” “is,” and “was,” are not correct because they are not in the conditional mood.
Here is a table showing the different forms of the verb “to be” in the conditional mood:
| Subject | Singular | Plural |
|—|—|—|
| I | were | were |
| You | were | were |
| He | were | were |
| She | were | were |
| It | were | were |
| We | were | were |
| You | were | were |
| They | were | were |
I hope this explanation is helpful! Let me know if you have any other questions.