The following is a payoff (in $000) table for three strategies and two states of nature for our company:

Strategy	States of Nature
	N1	N2
S1	40	60
S2	10	-20
S3	-40	150

Select a strategy using each of the following decision criteria: (a) Maximax, (b) Minimax regret, (c) Maximin, (d) Minimum risk, assuming equiprobable states.

Please provide thorough explanation.