Which of the following statements regarding the reorder point is TRUE?

A$.$ A shorter lead time implies a smaller reorder point.

B$.$ There is a reorder point even if lead time and demand during lead time are constant.

C$.$ The reorder point is larger than $dL$ if safety stock is present.

D$.$ The reorder point is that quantity that triggers an action to restock an item.

E$.$ All of the above are true