A positive-sum game occurs a. when the sum of the two players' outcomes is positive. b. when the gains received by one player are exactly offset by the losses of the other. c. whenever the payoffs to the two players are equal. d. whenever any of the values in the payoff matrix are positive.

the reason why your question keeps getting deleted because this is not a school related question : )

i will answer your question though.

i never tried church's

1. sometimes

2. never true

3. sometimes

step-by-step explanation:

these are pretty self explanatory if you know what supp right and com angles are