Answer :
The correct answer is option A.
The ancient Puebloans adapt to their physical environment by they built networks of ditches to irrigate the desert.
The ancient Puebloans were living in Sandias where the weather was wet and cold throughout the year.
The top of the Sandia mountains was covered with snow and there were giant glaciers and small lakes known as playas on the westward of Mesa.
On the other hand, eastward of Sandia's were Estancia Basins. So we can say that the physical environment was extremely cold as it was surrounded by cold regions and there was a severe deficiency of water.
Thus ancient Puebloan farmers built dams and small water reservoirs to store melted snow and rainwater.
In general, they adapted to their physical environment by they built networks of ditches to irrigate the desert.
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