Biology

The correct answer is A.Obtain nutrients.

All cells must obtain nutrients to survive. Nutrients provide the energy and building blocks necessary for cellular processes such as metabolism, growth, and repair. Without nutrients, a cell cannot perform its essential functions or produce the energy it needs to maintain life.

B.Absorb wastes: While cells must remove wastes, the process of absorbing wastes is not the key survival function. Wastes must be eliminated from the cell, but their absorption is not necessary.