Why was the creation of the two reservoirs in Tikal necessary?
A
because the rainforest was a place that was
always wet and had an excess amount of
water
B
because it had an important spring teeming
with water that needed to be collected and
stored
C
because the Maya had just invented a system
for retrieving groundwater from below
D
because the city got little rain for half the year
and there were no year-round lakes or rivers