Explain how government can regulate assemblies?

answer:

Guarantees the right of people to assemble, peaceably and to petition government for redress. ... In addition, while Government can regulate assembly on the basis of content neutral, it cannot regulate on the basis of what might be said there. Demonstrations. Take place in public places because it is public.

they gained popular support by speaking out against communists

in the united states. ( d.)

answer; i believe that the correct answer is (tobacco);