Alan Visits a Shopping Mall in His Neighborhood

Alan visits a shopping mall in his neighborhood.He recollects his lessons from a marketing class and attempts to relate them to his observations at the mall.Which of Alan's interpretations is most accurate?

A) Alan believes that Tie World,a shop that exclusively sells ties,has a wide product mix.
B) Alan believes that The Corner Store,a shop that sells everything from baby rattles and potting soil to contact lens cleaning solution,has a narrow product mix and deep product lines.
C) Alan believes that The Giga-store,a shop that sells hundreds of self-help books,novels,and religious-themed music CDs,has a narrow and shallow product mix.
D) Alan believes that Ming's Corner,a shop that sells 36 different kinds of muffins,has a narrow and deep product mix.