What two cities have tejano culture?

Most of the Tejanos are concentrated in southern Texas, in historic areas of Spanish colonial settlement and closer to the border that developed. The city of San Antonio is the historic center of Tejano culture; Bexar and Duval counties have some of the historically highest concentrations of Tejano.

offline recommendation systems option b

because recommendation systems produce a list of two ways

1. through collaborative filtering

or

2. through content-based filtering