I believe the answer is: oil and electricity
The annexation of Texas, a slave state, raised a lot of tension because it ruined the balance of power between the North free states and the South slave states.
The correct answer is: D) nullification.
Jefferson's Kentucky Resolution (drafted in 1798) introduces the theory of nullification. This means that states, individually, can judge a central government law and declare it unconstitutional if they desire to do so.
Answer:
cualquiera de los diversos sistemas de pensamiento en los que se considera que los objetos de conocimiento dependen de alguna manera de la actividad de la mente.
