Early in the twentieth century, william mcdougal and others proposed that motivation was a result of

Early in the twentieth century, William McDougal and others proposed that the motivation was a result of instinct. Instinct is a fixed behavior that is found in a person or an animal in which they know what to respond to a certain stimuli.

 

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