Choose a, b, c or d to complete the following sentences

Choose a,b,c or d to complete the following sentences.
1. Many channels are there on your TV ?
   A. Who       B.How      C.What     D.Where
2. Lan: My class has won the aerobics contest .
   Mai:                       
   A. Good lucky        B.Congratulations       C.See you later     D. Goodbye