Question: A population of ground squirrels has established a community in the grasslands of the Great Plains. Temperatures often reach -15°C for most of the winter. What is the most likely behavior the ground squirrels use to survive these winter temperatures?

  Options: 
 A. burrowing below the frost point of the soil surface
 B. burrowing in tree trunks above the soil surface
 C. consuming roots found under the soil surface
 D. consuming organisms found in the soil surface
Answer: A