Two u. s. west coast ports are world ports that connect the united states and asian markets. they're los angeles/long beach and
a. san diego.
b. san francisco.
c. portland.
d. seattle.

The answer is D. Seattle

It is the doctrine that the us had the right and duty to expand throughout north america. it just means they believed they had the right to expand westward and they did! they stated with the 13 colonies and then they kept moving gaining different territories throughout the years

The geographic feature in the westernmost corner of kenya is answer: the great rift vally