Answer:
She
Explanation:
She is the subject. It is usually the first noun that pops up. (USUALLY)
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:
A:The police no longer suspect Mary of murdering her husband.
Explanation: