Brickwall Builders is a real estate builder and developer that specializes in building premium villas, office spaces, warehouses, and retail stores. Brickwall$$s buildings are economical, have a high resale value, and are available for a very low down payment when compared to its competitors' buildings. This scenario illustrates the concept of $\_\_\_\_\_.$

a$.$ core capability

b$.$ competitive inertia

c$.$ distinctive competence

d$.$ strategic dissonance