Under Which Condition Would a Cost Leadership Strategy Be Especially

Under which condition would a cost leadership strategy be especially effective?

A) When few rival firms are following a similar approach.
B) When the products of rival sellers are essentially identical and supplies are readily available from any of several eager sellers.
C) When there are many ways to differentiate the product or service and many buyers perceive these differences as having value.
D) When buyer needs and uses are diverse.
E) When technological change is fast paced and competition revolves around rapidly evolving product features.