Which are steps taken by the first emperor of a united china to unify the country?   choose all answers that are correct.   a. built the great wall   b. appointed confucius as his chief adviser   c. forbade the practice of ancestor worship   d. standardized system of weights and measures

Plz , ive been stuck on this forever. what action did president jefferson take to stop britain and france from seizing american merchant ships. a. he declared war on france. b. he called for increased tariffs on british and french goods. c. he called for embargo on all foreign trade. d. he declared war on britain.