The answer is B. The ones who did this were know as spinning bees.
U.S constitution made it illegal to force people to pay tax polls because less people were voting because of the taxes that had to be paid.
Elsie MacGill was the first woman to earn a master's degree in aeronautical engineering (1929). She was also the first practicing Canadian woman engineer. In 1938, she became chief aeronautical engineer of Canadian Car & Foundry