A Reaction Occurs Via the Following Sequence of Elementary Steps

A reaction occurs via the following sequence of elementary steps.What is the rate law based on this reaction mechanism?
1^st step: A ⇌ B very fast
2^nd step: B + C → D slow
3^rd step: D → 2E fast

A) rate = k [E]²
B) rate = k [B] [C]
C) rate = k [A] [B]
D) rate = k [D]
E) rate = k [A] [C]