Which chinese dynasty lasted from 618 until 907?
a. tang dynasty
b. song dynasty
c. han dynasty
d. sui dynasty

Ally just bought a plane ticket. she notices that the fare includes a september 11 security fee. what is the government’s purpose for imposing this fee? a. to pay for security at airports b. to pay for airplane maintenance c. to compensate airlines for rising fuel prices d. to pay for new government airplanes