D. Daoism presented positive female role models, so it had a positive effect on the role of women in China.
The statement that best describes Kennedy's domestic achievements during his time in office is the second one: Kennedy wasn’t able to get much done due to opposition from Republicans and conservative Democrats in Congress.
Kennedy had very progressive legislative programs and reforms in mind, but conservative members from his own party (most of them Southern senators) prevented him from implementing them. He proposed economic reforms, such as increasing the minimum wage and lower the taxes, as well as social reforms, such as providing medical assistance for the elderly and promoting racial integration in the schools, but unfortunately he lacked the support from Congress to fully carry them out - at least while living; after his death, a civil rights bill known as the Civil Right Act of 1964 was passed.
The invention was the alternating current made by Nikola Tesla.
B. It brought about the unconditional surrender of Japan.
Not A, the bombs were dropped instead of invading, which had a very high estimated casualty rate if the US did.
Not C, Germany eventually faltered and caved in, and then surrendered in the European Theater.
Not D, the Japanese Empire was using Kamikaze attacks longs before Atomic weapons were developed.