Biology

The correct answer is: A.Each cell has different receptors to bind to the ligand.

Explanation:

The specificity of ligands in cell communication is largely determined by the presence of specific receptors on the surface or inside the cell. A ligand will only bind to cells that have the corresponding receptor for that ligand. This is why different cell types respond to different signals based on the specific receptors they express.

Why the other options are incorrect:

B.Each cell has a different response to the ligand: This is true, but it'...