Qing China achieved its greatest height under the rule of O Qian-Long
O Empress Cixi
O Zheng He
O Lao Tzu

its b they wanted to be able to expand their trade..

people can eat food during that time

randy pausch was a famous mathematician, writer and lecturer who is particularly famous for his last speech, given in 2007, "the las lecture", because he illustrates why one's dreams need to be pursued in a logical order if success is to be obtained, option c. at this time, pausch had been diagnosed with terminal cancer so he told the audience to follow their childhood dreams, which were possible to achieve. it has been recognized as one of the best motivational speech around the world.

because dead babies can't fart