제가 김밥을 준비할까요? 그럼 부탁해요 or 준비합시다

Question

This question below is from my Korean textbook.

A 제가 김밥을 준비할까요?

B 네，_________________

a) 그럼 부탁해요.
b) 준비합시다.

The answer is the option a. However, I am wondering why b doesn't work here? Thanks.

Answer 1

I can't see a situation where this conversation will take place with these exact phrases and honorific conjugations, but let me take a stab at why (a) is better than (b).

Since the question is, "Shall I...?" it is awkward to say, "yes, let's!" and a better teaching premise to answer with a "yes, you are requested to do so [i am requesting you to do so]".

Answer 2

The person offered to prepare the food, and you are simply accepting the offer. It would be weird if the conversation went:

Should I prepare the food?
Yes, let's prepare the food.

Because the offer implies that you are going to do the work alone, or at least without the listener.

Answer 3

제가 김밥을 준비할까요?

라고 했으므로,

b) (같이) 준비합시다!

가 아닌

a) 그럼 부탁해요.

가 더 잘 어울립니다. b)는 '함께 하자'는 의미이므로, "제가 김밥을 준비할까요?"와 어울리지 않습니다.

Answer 4

A : 제가 김밥을 준비할까요?

Shall I prepare 김밥?

B with a) : 네, 그럼 부탁해요.

Yes, please.

B with b) : 네, 준비합시다.

Yes, let's do that.

If I were to say "Let's do that together." to "Shall I prepare 김밥?", I'd rather say "우리 함께 준비합시다." not "네, 우리 함께 준비합시다." Since B already said "네", I think b) is an awkward choice.

If A asked like "우리 같이(or 함께) 김밥 준비할까요?", than b) would be the answer, not a).

However, for some rare context b) also might make sense, such as when A actually wants to make 김밥 together with B, but if B doesn't want to be bothered with.

If I were to choose only one of them, I would choose a).