Thor's Gazebos faces stiff competition from Loki's Equipment, a rival firm with which Thor's Gazebos' has achieved differentiation parity. Both firms have invested in state$-$of$-$the art production facilities and have similar learning curves of $85$ percent. Assuming neither firm can reduce the cost of its input factors, how can Thor's Gazebos achieve a competitive advantage as a cost$-$leader?

D$)$ Cut costs by eliminating several features that customers value.

A$)$ Have a cumulative output that is greater than Loki's.

B$)$ Increase spending to develop additional product features.

C$)$ Reduce the manufacturing staff by half to save on labor costs.