I honestly hope that this helps you.
I assume you mean the three tenses, but let me know if you need more.
Past Tense: "Birds flew in the sky."
Future Tense: "Birds will fly in the sky."
The sentence is already in the present tense.
this is a memoir I hope I could help
A. Uses the vocab word incorrectly. ‘Exploit’ means to take advantage of which does not make sense in the context of the sentence (the correct word for that sentence is probably ‘explosion’).
B. Is correct because ‘esteem’ means to hold respect for.