GIVING BRAINLIEST What ended the Nullification Crisis?
(20 Points)
a. Congressman Henry Clay worked out a compromise that lowered the tariff 15% over 10 years.
b. President Jackson led the army into South Carolina and enforced the tariff collection.
c. South Carolina seceded from the Union.
d. The Supreme Court ruled the Tariff of Abominations to be unconstitutional.

Martin, a 32-year-old human relations administrator at a university, believes that all professors over age 50 are incapable of learning the new educational technologies and are content to keep presenting their same "tired, boring" lectures. he often expresses these views to other administrators and does not encourage any of the "older" faculty members to attend professional development meetings related to new teaching approaches nor does he suggest that the university send them to any of the technology conferences. martin is exhibiting

Which groups of people most directly benefited from song innovations in the song dynasty‘s open border policy?

As you drive in to school, you hear a random radio-show caller arguing that sun exposure really has not been shown to cause skin cancer and that some research suggests that skin cancer is completely genetic and not related to sun exposure at all. at the time, you think that this is a silly argument and that the caller does not know what she is talking about. however, two months later, you are outside without wearing sunscreen, and you find yourself remembering that you had read something about how the sun actually does not cause skin cancer. this process is evidence that has influenced your attitude