The correct option is (d) All of the mentioned
The explanation is: A hydropathy plot is a method by which transmembrane segments of a protein can be identified if the amino acid sequence of the protein is known. Hydropathy plot assigns each site with a value to measure the hydrophobicity of an amino acid at a site and also at its neighbours. This helps to determine the arrangement of amino acid in the transmembrane domain, based on its hydrophobic character.