Select the sentence that corrects the error in the following. When I saw the tent collapse.

A: I was sad when I saw the tent collapse.
B: There is no error.
C: When I had seen the tent collapse.

Why were presidents andrew jackson and martin van buren unwilling to annex texas? a. they did not want texas to be admitted to the union as a slave state. b. they feared that the annexation of texas as a slave state would lead to political problems within the union. c. they thought that texas was too large to be admitted to the union as one state. d. they did not believe in the idea of manifest destiny.