Which command is used to copy all files having the string chap and any two characters after that to the progs directory?

Which command is used to copy all files having the string chap and any

1.	Which command is used to copy all files having the string chap and any two characters after that to the progs directory?
A.	cp chap?? progs
B.	cp chap* progs
C.	cp chap[12] /progs/.
D.	cp chap?? /progs/*
Answer» B. cp chap* progs