During the colonial wars of the first half of the eighteenth century, the Iroquois and their allies...

  

• broke up their confederation under the strain of prolonged warfare.
• abandoned their "covenant chain" of treaties with Pennsylvania tribes. 
• adopted a policy of neutrality, exploiting the opportunities for trade with both France and Britain. 
• favored the French over the British. 

ANSWER: the Iroquois and their allies adopted a policy of neutrality, exploiting the opportunities for trade with both France and Britain.