Why did martin luther king lead marches in the north
a.) to point out the needs of the poor
b.) to point out prosperity in the north
c.) to point out the accomplishments of the rich
d.) to point out problems in the south

It's probably D. To point out problems in the south given the subject of most of his marches was going against racism in the south

C)  to protect all concerned with the trade industry thus ensuring its continuation

Explanation:

OPTIONS:

A)  to protect the borders of China from illegal entry of foreigners

B)  to protect foreign traders from a citizenry who did not like any foreign influence on their country

C)  to protect all concerned with the trade industry thus ensuring its continuation

D)  to protect the citizenry from foreign traders who were known to be brutal and barbarous