Read the selection from the article:
"cervera led his squadron out of santiago on july 3 and tried to escape westward along the coast. in the ensuing battle, all of his ships came under heavy fire from u. s. guns and were beached as they burned or sank. cervera surrendered to shafter on july 17, thus effectively ending the war."
which answer choice is a central idea of the article that is supported by the paragraph above?
a. the u. s. government demanded the withdrawal of spanish forces from cuba.
b. the spanish forces tried to avoid conflict as best they could.
c. the spanish forces took brutal measures to stop the cuban rebels.
d. the spanish-american war was a one-sided conflict.

The U.S. government demanded the withdrawal of Spanish forces from Cuba.

Option A

Explanation:

The passage that is given in the question talks about the conflict between the United States of America and Spain. The government of the United States demanded the forces of Spain to go from Cuba and withdraw from there.

For this purpose, they had fired on the ships of the Spanish forces also and tried to destroy all of them. This resolution was passed by the congress in the 1898 in the United States of America to withdraw the Spanish forces.

this null effect is caused by a weak manipulation and ineffective internal validity. in a scientific study, as the one dr. morimoto is trying to perfom, internal validity refers to the confidence placed in the cause-effect relationship and to how well an experiment is done and able to eliminate confounding variables.