The following air gap readings were obtained from a horizontally mounted, bilge pump, induction motor, equipped with sleeve bearings: ; FWD END AFT END ; Top .045 .049; Right Side .045 .047; Left Side .045 .047 ; Bottom .045 .041; ; Which of the following statements is true?

A.The aft bearing should be replaced.
B.Shims should be removed from the aft bearing.
C.The forward bearing should be lowered.
D.The aft bearing should be lowered.