What prediction of the optimal patch model did Tome (1988) test on ruddy ducks?
A) As travel time increases, individuals should spend more time in and harvest more items from a patch B) Quitting harvest rates will be higher in rich compared to poor patches C) Giving-up densities should vary with food patch quality D) The marginal benefit of feeding should equal the missed opportunity costs of exploiting a patch E) The cumulative gain curve should get steeper as more time is spent in a patch