Progressive is the correct answer B.
A. Present
B. Progressive
C. Future
D. Past perfect
The chef at the restaurant is baking fresh rolls.
B.
The chef at the restaurant bakes fresh rolls.
C.
The chef at the restaurant baked fresh rolls.
D.
The chef at the restaurant will bake fresh rolls.
b. Formal clothing must be worn to Kim's wedding.
c. The test will be offered several times this week.
d. We were told to wait until five o'clock for the delivery.