What is the difference between a plaza ina spanish speaking country and one in los estados unidos?

Below are the choices that can be found from other sources:

a. in los estados unidos, a plaza does not serve a social purpose
b. in los estados unidos, only small towns have plazas
c. in los estados unidos, a plaza is called a theme park
d. in los estados unidos, a plaza is much bigger

I think the answer is A. 

Bi’m pretty sure i am pretty fluent in spanish so it should be right

1. hoy es lunes.2. mi cumpleaños es el 20 de julio de 1975.3. voy de vacaciones de navidad del 23 al 26 de diciembre.4. ¿de donde eres?