I would say the answer is C
This may not be right and I'm sorry if it is not, I'm just trying help but I hoped it helped somehow, Have a fancy day ^_^
Answer:
What is the purpose of a blimp?
These properties make blimps ideal for such uses as covering sporting events, advertising and some research, like scouting for whales. Recently, there has been renewed interest in using rigid airships for lifting and/or transporting heavy cargo loads, like ships, tanks and oil rigs, for military and civilian purposes.
Explanation:
The purpose of the swivel that the blimp is attached to is to let the blimp stay clear of the heavy winds by being a joint that can move freely. Why does a blimp need to be moored to the ground? The blimp needs to be moored to the ground so the blimp can't float away.
The women were challenged by segregated facilities. They had to struggle through segregated bathrooms in different buildings and issues with the general distrust of their ability. Many whites believed that blacks carried diseases and you could not touch anything they touched. This is why there were separate bathrooms, coffee, supplies, and work spaces.