I believe it is A due to "The lady made detailed plans, engaged the caterer and the orchestra well in advance" isn't exactly connect well and be hard to understand so you'd put a comma between "caterer, and".
answer:
b. your opinion is based off of your bad experiences
explanation:
i believe this is the correct answer because a normal onion wouldn't be gooey. to be quite honest it sounds like the onion in this case was most likely rotten.
good luck :)
hopefully, this helps
have a nice day !!
