A customer wants to configure two resource groups and create the following shared filesystem structure：Resource GroupFilsystem Mount Point Rg1/app1 Rg2/app1/data Which of the following will ensure the proper mount order for these filesystems？（）

A.Set filesystem recovery method to parallel

B.Set filesystem recovery method to sequential

C.Set filesystem recovery method to parallel and configure a parent/child relationship for the resourcegroups

D.Set filesystem recovery method to sequential and configure a parent/child relationship for the resourcegroups