The Following Questions Refer to the Excerpt Below

The following questions refer to the excerpt below.
"As the frontier of white settlement expanded westward and Iroquois war parties followed the warrior path to the southeastern tribes,the two forces inevitably clashed...But [the English] wanted the confederacy tied to the British interest exclusively…[and accepted that in the short term] an accommodation [treaty] would prove cheaper than a war… That summer of 1760 witnessed a high watermark in Indian affairs. Canada passed into English hands;the ancient regime ceased to rule New France… English traders no longer had French rivals… The Six Nations and their tributaries had fallen from the position of balancing power between rival nations."
William Nelson Fenton,The Great Law and the Longhouse: A Political History of the Iroquois Confederacy,1998
-The presence of both the British and French in the territory of the Iroquois changed Native American society by

A) intensifying conflict over land in Iroquois territory.
B) limiting the impact of white settlers because the imperial powers kept one another in check.
C) deepening the resolve of the Native Americans to avoid contact with the Europeans.
D) pushing the Iroquois into closer trade relations with the French.