Step 1: Identify the definite and indefinite articles.
- "Wolf" refers to a specific, known creature, so it takes a.
- "Lamb" refers to any lamb, hence a is used.
Step 2: Use definite articles appropriately.
- "The fold" and "the wolf's right" refer to specific items that are previously mentioned or understood, so the definite article the fits.
Step 3: Check options.
- Option (A): "a, a, the, the" fits the context of indefinite and definite articles being used correctly.
Therefore: The correct answer is \boxed{(A)}.