All of the following occurred between 1870 and 1875 EXCEPT:
a Quanah Parker and his Comanche tribe surrendered
b Buffalo soldiers arrested hundreds of buffalo hunters for illegal gaming
c Buffalo hunters in Texas destroyed herds.
d Sherman changed the military objective of the U. S. from defensive operations to offensive campaigns against Native Americans.

d. Sherman changed the military objective of the U.S. from defensive operations to offensive campaigns against Native Americans.

Explanation:

- Quanah Parker and his Comanche tribe surrendered

Occurred in 1871 after Qua nah lost several battles and many members of his tribes were massacred.

- Buffalo soldiers arrested hundreds of buffalo hunters for illegal gaming

Also occurred around 1871. At that time, buffalo hunters killed the buffaloes for fun and collected part of their bodies for trophy.

-  Buffalo hunters in Texas destroyed herds.

Occurred between 1866- 1873. So it's still included in the time range.

-  Sherman changed the military objective of the U.S. from defensive operations to offensive campaigns against Native Americans.

This occurred between 1866-1869, At that time, Sherman was affiliated with railroads company who believe that Native Americans were hostile toward their workers. This was his justification to change the military objective from defensive to offensive toward the natives.

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