Suppose that a decision maker faced with four decision alternatives and four states of nature develops the following cost payoff table:

State of Nature

Decision Alternative

$1$

$2$

$3$

$4$

$1$

$14$

$9$

$10$

$5$

$2$

$11$

$10$

$8$

$7$

$3$

$9$

$10$

$10$

$11$

$4$

$8$

$10$

$11$

$13$

What is the recommended decision using the optimistic, conservative, and minimax regret approaches?