What the largest industry of the great plains a agriculture c cars d tourism i need an awnser asp

the answer is A. and if its not write just let me know

answer: in october 1962, an american u-2 spy plane secretly photographed nuclear missile sites being built by the soviet union on the island of cuba. president kennedy did not want the soviet union and cuba to know that he had discovered the missiles. he met in secret with his advisors for several days to discuss the problem.

explanation:

answer; i believe the correct answer is (the willamete valley);