What motivated the u. s. to develop the policy of containment in reaction to the foreign policy of the u. s.s. r.?
○the u. s. thought that the u. s.s. r. was trying to keep people out of its territory.
○the u. s. was concerned that the u. s.s. r. was interfering in other countries' political elections.
○the u. s.s. r. wanted to block all travel between countries in europe and asia.
○the u. s.s. r. was committed to expanding communism into other countries.