What is the measure of angle n°?

Which of the following sentences has correct Subject-Verb argument?

a. Visitors to the north part of the Korean peninsula notice immediately upon crossing the border that they have entered another , poorer country .

b. People in the south has a great diversity of employment opportunities because of the many businesses and industries that have sprung up there in the last fifty years.

C. a matter of fact, the standard of living for the typical South Korean make them one of the most prosperous of all people in the Pacific Rim.

answer:

c. the third graph

the answer

b. they are parallel and will never intersect.