The best option from the list would be that "<span>b. The United States began to build up its military and to stockpile weapons," since this was part of the inevitable "Arms Race" that took place between the US and the USSR. </span>
Answer: Thousands of women in the North and South joined volunteer brigades and signed up to work as nurses.
Explanation: also they disguised themselves as men to fight but i doubt that will show up tho
Mass production of goods resulted in the use of mechanization to have an oversupply. Some labor work were replaced by machines, which created unemployment and change of needed skills for an upgrade. Common work can be done by machines while the craft was still handed down to skilled workers. There was a high demand for buying machines that can reproduce products faster.
C. Female children in Sparta were sequestered (hidden indoors)
(My answer depends on what textbook you are reading or were your text is to support it)
Jews were encouraged to leave the country, they forced Jews out of schools and professions like medicine and teaching, they banned Jew/Non-Jew relationships, segregation, forced them to wear the Star of David. The Nazis started off small, but eventually took away huge rights for them.