Answer:
the answer is A. enviornment
The space race led to many breakthroughs in science and technology and got people very excited, so its B.
a distinct section of a piece of writing, usually dealing with a single theme and indicated by a new line, indentation, or numbering.
They had originated from "B" Boston.
Causes of the War of 1812. At the outset of the 19th century, Great Britain was locked in a long and bitter conflict with Napoleon Bonaparte's France. ... In 1809, the U.S. Congress repealed Thomas Jefferson's unpopular Embargo Act, which by restricting trade had hurt Americans more than either Britain or France.
i don’t know if am correcy