Step 1: Understanding protein quality evaluation.
- The Protein Digestibility-Corrected Amino Acid Score (PDCAAS) is the gold standard used to evaluate protein quality based on its digestibility and amino acid composition.
Step 2: Explanation of incorrect options.
- PDDAC, PAADS, and PCAAS are not valid methods for evaluating protein quality.
Step 3: Selecting the correct option.
- Since PDCAAS is the recognized method for protein quality assessment, the correct answer is (A) PDCAAS.