Answer:
Feet is the appropriate unit.
Step-by-step explanation:
Feet will be an appropriate measure to describe the depth of a lake.
Miles is a very large unit usually used to describe distance between two places.
Cubic centimeters is a unit of volume.
Millimeters is a very small unit used to describe small objects like the diameter of a penny etc.
Therefore, feet is the most appropriate unit to measure the depth of the lake.
