The murders of Tahgahjute's wife and children were especially unfair because the chief . A. Had met just with the president and signed a treaty in Washington b. Always had been very friendly to European settlers c. Had saved Colonel Cresap's family from attack by other Native Americans d. Always told his family that European settlers were their allies

b.  Always had been very friendly to European settlers

Explanation:

it was so difficult to whip up enthusiasm for killing settlers that those who made the murder, murdered all the relations of Logan, not sparing even my women and children.

had precipitated all-out hostilities was the murder of the family of Tahgahjute, ... and the unborn child was cut from its dead mother's womb and impaled on a ... Greathouse's flatboat, killing his crew, and torturing Greathouse and his wife to .

. murdered all the relations of Logan, not sparing even my women and children. ... whom Tahgahjute mistakenly blamed for the massacre), leading Jefferson, ..

this man believed that the European settlers had been friendly with him until they served him cruelty and in the long run, killed him , his wife and children, even the unborn.

b: the establishment clause  

b: socialism