Circle the option that has the same meaning as the original sentence

Circle the option that has the same meaning as the original sentence. 
Question 1. Is she making big cakes for the party?
A. Are big cakes being made for the party? 
B. Are big cakes making for the party?
C. Is she being made big cakes for the party? 
D. Are big cakes made for the party?
Question 2. It is at this shop that I bought this pullover.
A. It is at this shop which this pullover was bought. 
B. It is at this shop that this pullover has been bought.
C. It is at this shop that this pullover is bought.
D. It is at this shop that this pullover was bought.
Question 3. They will have announced their engagement by the time they come back .
A. Their engagement will have been announced by the time they come back. 
B. Their engagement will be announced by the time they come back.
C. Their engagement will have announced by the time they come back.
D. Their engagement will have be announced by the time they come back.
Question 4 . Who has taken out the garbage?
A. Who has the garbage been taken out by ?
B. By whom has the garbage taken out?
C. By whom has the garbage been taken out?
D. Both A & C are correct