How many time zones does the contiguous United States have?

4
6
3
2

Aprovision of the general agreement on tariffs and trade treaty (gatt)increased taxes on services between the us, mexico, and canada.reduced international tariffs on industrial goods by forty percent.increased us tariffs on agricultural products by forty percent.ended taxes on goods traded by the us, mexico, and canada.

Popular culture mainly encompasses the realm of a-politics b-religion c-business d-entertainment

Can i have all the nicknames of all 50 states of usa?