Which of the following was true of secretary of state william henry seward?
a. he opposed american imperial expansion.
b. he annexed the midway islands.
c. he was successful in negotiating a trade deal with the kingdom of hawaii.
d. he negotiated the purchase of alaska from canada.

The correct answer is B. He annexed the Midway Islands.

His trade deal with Hawaii was unsuccessful, while Alaska was purchased from Russia, not Canada. He did, however, annex the Midway Islands.

He sailed off course on his way back to greenland and ended up in north america

Jackson  said nullification 'means insurrection and war,' and called it a treasonous attack on america. the second aspect of the  force bill  was the passing in congress of a lower tariff in 1833. this was offered as a compromise to avoid conflict with south carolina, and to attempt to defuse the tense situation.source google