I also agree that the answer is B: whom
in this sentence you are using the preposition + whom grammar structure. Whom is considered an object pronoun and is used when asking who will receive the action, which in this case, I believe is, baking those cookies. Hopefully this makes sense and good luck.
I don’t have a sister but ok sure
answer is below
Explanation:
the journey is undertaken by the engineers and scientists every year abroad the SA Agulhas to take supplies to the south African base
“because the train will arrive any minute”
adverb clauses usually start with because, after, if, although
Answer: National Guard Specialist, Medical and Health