Which two statements are true about the share value for a virtual machine after it has been added to a resource pool?

Which two statements are true about the share value for a virtual machine after it has been added to a resource pool? (Choose two.)
A. If a previously defined custom share value exists, the totals shares in the pool should be evaluated to maintain the expected performance.
B. If a previously defined custom share value exists, the %Shares value will automatically be adjusted relative to the total number of shares in the pool.
C. If a previously defined share level (high, medium, low) exists, the %Shares value is changed to Custom and the previous value is retained.
D. If there are no other objects in the pool the share value is irrelevant.