Reciprocity means: Select one: a. responding to another's actions with a similar action. b. deriving utility from an action that will cause another's utility to increase. c. doing good things for people and asking nothing in return. d. deriving utility from the action of a stranger.

Alloy of metals is the answer

The  frame of government of pennsylvaniawas a constitution for the  province of pennsylvania a  proprittarycoony granted to  william penne by  charles ii of england. the frame of government has lasting historical importance as an important step in the  development of american and world democracy.