Containment is a U.S. policy that tries to stop the spread of Communism by "containing" it to the areas that it has already spread to. This policy was used after WWll and just before Cold War tensions started to heat up between the U.S. and the Soviet Union because America wanted to stop Communist Russia's influence on the rest of Europe.
Answer:
The older male astronaut welcomes the female trainees.
Explanation
As written "The older male astronaut welcome the female trainees" the word welcome is being used as a verb and is impropley conjugated.
I - welcome
You- welcome
He/She/It- welcomes
We- welcome
They- welcome
There were several major factors that led to stalemate in the trenches, but the best options from the list are "Defensive weapons were better than offensive ones.
<span>and Trenches were designed for defense."</span>
