As Restaurant Chains That Specialize in Mexican Cuisine,Fernando's and Carmelita's

As restaurant chains that specialize in Mexican cuisine,Fernando's and Carmelita's offer similar items on their menus.However,Fernando's restaurants are positioned in the market as elegant establishments with high prices.Carmelita's restaurants,on the other hand,are located in middle class neighbourhoods,with a casual atmosphere that welcomes families with young children.The prices at Carmelita's are in the moderate range.When evaluating the marketing strategies used by these restaurants,we can conclude that:

A) they utilize product differentiation.
B) their target markets differ,with one intended to appeal to the industrial market,and the other designed to attract the consumer market.
C) both practice product mix effectiveness.
D) Fernando's has chosen a shopping good strategy.