WhatroleshouldbeassignedintheCommercePaymentsUserspagesothataWebSphereCommerceusercanperformbasicpaymentprocessing butnotcredits?()

WhatroleshouldbeassignedintheCommercePaymentsUserspagesothataWebSphereCommerceusercanperformbasicpaymentprocessing，butnotcredits？（）

A、MerchantAdministrator

B、PaymentAdministrator

C、PaymentProcessor

D、Supervisor

E、Clerk