Which fact provides the BEST evidence to support the conclusion that the royal governors were concerned with keeping the settlers happy and reducing the conflict that had emerged during the trustee period?

During the royal period citizens were given the opportunity to purchase more land, and use slaves to work the land.

Explanation:

The trustee period refers to the time when the British empire just came to the Georgia's territory and still hasn't crated a proper structure for its government.  So, the territory is controlled by a group of trustees hat are close to the King of England.

During this time, the British empire wanted the people from Europe to move to united states and manage the resources in this territory. As return, the British empire will took a percentage of taxes.

In order to attract the settlers and made them happy, the empire gave opportunity for the settlers to purchase land with relatively low price. Slaves that gathered through north Atlantic slave trade can be use by these settlers as free labors that can helped them expanded their businesses.