Which is a central idea of the article? A. An alliance with Ousamequin helped the
Pilgrims survive and lasted 50 years.
B. The Pilgrims left England in 1620.
C. The Wampanoag people lived in dozens of
independent but connected communities.
D. Tisquantum's knowledge of English was key to
Ousamequin's relations with Plymouth.

A. An alliance with Ousamequin helped the  Pilgrims survive and lasted 50 years.

Explanation:

There is no article referenced however the above should be the correct answer because it is a topic or idea that a passage can be built upon and that the other options can fall under.

When the English settlers first arrived in the Plymouth Colony they made contact with the Wampanoag who were led by the great Chief Ousamequin. Ousamequin saw this as an opportunity to protect his people and so got into an alliance with them.

This alliance was mutually beneficial because it enabled an exchanged of information and absence of hostilities that ensured that the Pilgrims survived. The alliance went on to last more than 50 years.