Sally is very rich that money hardly matters to her, although when the price of JIF chunky peanut butter doubled Sally switched to Peter Pan chunky peanut butter. This alters is an example of the: (1) Income effect. (2) Payback effect. (3) Substitution effect. (4) Principle of equivalent net utilities per dollar. (5) Retribution effect.
Find out the right answer from the above options.