During a dry season, a farmer can cause an environmental change by regularly watering crops. This environmental change can effect the stability of the field's ecosystem by causing the ecosystem to become
a
less stable, as the crops in the field outnumber the native grasses in the field.
b
more stable, as the crops in the field do not dehydrate and die off.
c
more stable, as the crops in the field receive too much water.
d
less stable, as the crops in the field receive more water than they would with rain.