Explain why Britain and the United States were both interested in protecting the newly independent Latin American nations.

answer:

The Monroe Doctrine deeply effected the United States' foreign policy relationship with Latin American countries. ... However, it caused a negative effect on Spain because America would no longer be helping or aiding them with troops during wars with other countries.

i would say your answer is a)

sorry if im wrong

lend lease program was passed by congress on march 11, 1941. the president could ship weapons, food, or stuff to any country whose struggle against the axis assisted u.s. defense