The primary reason the united states advocated the open door policy was to

protect and broaden U.S. trade with China.

Explanation:

latin america is a region of racial and cultural diversity.  it is a group of countries and dependencies in the americas where romance languages are predominant. the term originated in 19th century france as amérique latine to consider french-speaking territories in the americas along with the larger group of countries where spanish and portuguese languages prevailed.

explanation:

answer; william penn's approach made the colony diverse by attracting many types of people and religions;