There are a group of kids in our neighborhood who like to get together

There are a group of kids in our neighborhood who like to get together on the weekends and help less fortunate children.
The right answer is D:
"There is a group of kids in our neighborhood who like to get together on the weekends and help less fortunate children."

A - The are a group of kids in our neighborhood who like to get together on the weekends and help less fortunate children
B- Getting together on the weekends are a group of kids which like helping less fortunate children
C-A group of kids on the weekend getting together in our neighborhood like the helping of less fortunate children
D- There is a group of kids in our neighborhood who like to get together on the weekends and help less fortunate children
E-In our neighborhood, there is a group of kids who likes to get together on the weekends and helping less fortunate children.

Hi guys,
I will clarify my question:

GMAT Ultimate grammar book by the GMAT Club, First Edition, p.101, question 49.

My question: I do not understand in answer D why "like" is plural while "is" is singular. Don't they both refer to the collective noun "group" (and therefore be both singular)?

Thanks for your help.

There are a group of kids in our neighborhood who like to get together on the weekends and help less fortunate children


a) There are a group of kids in our neighborhood who like to get together on the weekends and help
b) Getting together on the weekends are a group of kids which like helping
c) A group of kids on the weekend getting together in our neighborhood like the helping of
d) There is a group of kids in our neighborhood who like to get together on the weekends and help
e) In our neighborhood, there is a group of kids who likes to get together on the weekends and helping

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Hi experts,

This question hasn't got any explanation yet. Could you please help?

I crossed out A, B, C because I think "group" is a collective noun and should go with a singular verb. However, the answer is B.

A few ideas:

"IS" modifies the "Group" and "WHO LIKE" modifies the "KIDS".
You can't really say "Group who likes to get together". A group can't get together and probably would be "that" or "which" instead of "who"