--I`m very sorry to have caused you so much trouble,Mr Green.--（ ）A.My pleasure B.I hope not C.You are welcome D.That`s all right

--I`m very sorry to have caused you so much trouble,Mr Green.--（ ）A.My pleasure B.I hope not C.You are welcome D.That`s all right
--I`m very sorry to have caused you so much trouble,Mr Green.--（ ）
A.My pleasure B.I hope not C.You are welcome D.That`s all right

--I`m very sorry to have caused you so much trouble,Mr Green.--（ ）A.My pleasure B.I hope not C.You are welcome D.That`s all right
D 没有关系.