The president signing a trade agreement with china is an example of
оe
o
approving an amendment.
ratifying an amendment.
granting a pardon.
making a treaty.

it provided for equal trade rights among nations in china.

the answer should be a. the sui empire, the tang empire extended from korea in the west to manchuria in the east.

either d or b, i'm not to sure. but my gut tells me it's prob going to be b