Assertion: position of centre of mass relative to body is independent of choice of co-ordinate system.?

Reason: centre of mass does not shift its position in the absence of an external force

dear student,
Assertion: Position of c.o.m. with respect to body is independent of choice of coordinate system
Reason: It's position is the result of distribution of objects mass .Till this distribution remains fixed, position of c.o.m. with respect to object remains fixed .
regards