Which Statement Is True About the Mexican War of 1846-1848

Which statement is true about the Mexican War of 1846-1848?

A) Mexico was still a Spanish colony when the war started.
B) Mexico won the war and regained Texas.
C) It was opposed by a significant minority in the North.
D) Mexico lost the war but ceded only about 10 percent of its territory in the Treaty of Guadalupe Hidalgo.
E) The war is largely forgotten in Mexico.