Which of the following conditions is most likely to lead to an increase in a field mouse population?

Athe arrival of another herbivorous mammal
Bthe presence of a greater number of predator snakes
Cthe disappearance of a bird species that preys on the mouse
Dthe lack of adequate rainfall for plants in the mouse’s habitat

Verified Answer :

C. the disappearance of a bird species that preys on the mouse. If there are less/no predators(animals that feed on the mouse), then the mouse population will increase because they are not been eaten or reduced by that factor anymore.
The other options will only end up reducing the mouse population.