whAt is thE BEst titlE For thE pAssAgE
A．puErto riCo mAintAins FormAl spAnish inFluEnCEs
B．puErto riCo is A mixturE oF thE nEw AnD thE olD
C．mixturE City in AmEriCA
D．thE gEnErAl gEogrAphy AnD populAtion in puErto riCo