The purpose of the salt i agreement in 1972 was to
a: establish us recognition of china for the first time since 1949.
b: regulate chinese production of missiles carrying nuclear weapons.
c: regulate soviet production of missiles carrying nuclear weapons
d: create documents that officially ended the cold war.

c

explanation:

freedom of speech is also protected by the 1 amendment.

explanation:

here is pretty much what the 1st amendment says:

congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof; or abridging the freedom of speech, or of the press; or the right of the people peaceably to assemble, and to petition the government for a redress of grievances.