Why were U.S.-Soviet relations strained during the Carter presidency? Choose all that apply

Carter refused to sign the Helsinki Accords.
Carter supported Soviet dissidents who spoke out against the Soviet regime.
Carter violated the Camp David Accords.
The Soviet Union invaded Afghanistan.



Answer :

Answer:

The Soviet Union invaded Afghanistan. and that created major tensions between the two world powers

Explanation:

During the Carter presidency, U.S.-Soviet relations were strained for several reasons.

Here is the major factor (in the context of the answer choices) that led to these tensions

Afghanistan invasion:

The Soviet Union invaded Afghanistan in December 1979, leading to a significant escalation of tensions between the U.S. and the Soviet Union.

There were other factors too but none of the other answers are correct