It’s either A or B, but I would go for B
This mood is caused by opinion of how the church functions.
-West Egg homes imitate old styles, while East Egg homes were made when those styles were first designed.
-The narrator describes his first impressions of East Egg with light, dreamy imagery and those of West Egg with dark, shadowy imagery.
You will need to add the commas as follows:
I think Robert, Mary Jane, Andrea, Lee Ann, and Milton should be on the planning committee.
There are 4 commas.