Who goes or Who go?

Hello everyone. Please let me know ....... which one is correct?

A: Who goes shopping this evening?
B: My sister and I go shopping this evening?

or

C: Who go shopping this evening?
D: My sister and I go shopping this evening.
?

Who will go shopping this evening?
My sister and I will go shopping this evening.

Hello everyone. Please let me know ....... which one is correct?

A: Who goes shopping this evening?
B: My sister and I go shopping this evening?

or

C: Who go shopping this evening?
D: My sister and I go shopping this evening.
?

Hello everyone. Please let me know ....... which one is correct?

A: Who goes shopping this evening?
B: My sister and I go shopping this evening?

or

C: Who go shopping this evening?
D: My sister and I go shopping this evening.
?

For me, the most natural exchange that is closest to your original is:

A: Who is going shopping this evening?
B: My sister and I (are going shopping this evening).

AlpheccaStarsWho will go shopping this evening? My sister and I will go shopping this evening.

Alphecca, What about the following?

A: Who knows the mayor?
B: My friend and I know him.

or

C: Who know the mayor?
D: My friend and I know him.
?
In fact I want to know if we can use "know" after "who" or I always have to

It's always "Who knows...?" in a question.

I hesitate to use "always" but definitely "Who [singular]...?" In those questions.

BarbaraPAI hesitate to use "always" but definitely "Who [singular]...?" In those questions.

Thank you Barbara. Then even when we know that the subject of the verb are more than one people. It is still better to use "who + singular"?

Conversation A
Reza: Who says He is dead?
Ali: The two doctors say he is dead.

or

Reza: Who s

When "who" introduces a relative clause, the verb agreement is governed by the antecedent.

None of the doctors who say he is dead want to break the news to his wife.

But when there is no antecedent, as in a question, the verb is singular.

Who says he is dead?
These doctors, that's who. (Notice the singular form is used in the tag: that is who. Th