This effect is called proactive interference.
Proactive interference (PI) is a type of explanation for why we forget or cannot recall information. The PI effect means that forgetting occurs because old memories interfere with our ability to form memories. An example of the PI effect is when you try to learn or memorize a new phone number, however, phone numbers that already exist in your memory interfere with your learning of the new phone number.
The main thing was electricity
Answer: A. Aircrafts.
Explanation: It's A because they made over 300,000 airplanes, another fun fact: The aerospace industry is larger than both agriculture and hollywood combined!
They're given money to help support them while they are having difficulty finding jobs since they had a large disadvantage (and still to this day a smaller, but still significant, disadvantage).
Many people argue that the new deal actually hurt many minorities from getting jobs at all since it did not solve any real underlying issue, only supplemented them with money instead of solving the root of the problem in why they could not get a job in the first place.
Social support is helping Paul handle his stress.
(Sounds to me like Paul needs a vacation.)