An automobile manufacturer strives to design products with above average safety features, and its promotional efforts highlight this. The company does not, however, include a lot of high$-$end luxury options in its vehicles, which are moderately priced. The product line includes two$-$door and four$-$door cars, SUVS, pickups and minivans. This company is exhibifing

a$.$ a differentiated corporate level strategy.

b$.$ a conglomerate diversification strategy.

c$.$ a narrow focus strategy.

d$.$ a best$-$cost provider strategy.