D is the answer to the question
A beginning of a new government.
A company with a pure monopoly means that a company is the only seller in a market with no other close substitutes. ... Also, with pure monopolies, there are high barriers to entry, such as significant start-up costs preventing competitors from entering the market.
Answer:
The youngest to become president by election was John F. Kennedy, who was 43 year
Explanation:
The oldest person to assume the presidency was Donald Trump, at the age of 70 years
Answer:
it's world war11 and nuclear bombs
