Verification of truth — What chocolate always contains A chocolate always has ________.

Introduction / Context:
Chocolate is defined by its cacao (cocoa) content. The item asks for what is inherently present in all chocolate, not optional variations.

Given Data / Assumptions:

• Chocolate types: dark, milk, white (with cocoa butter but, in colloquial puzzles, “cocoa” stands for cacao origin).
• We choose the universally defining ingredient.

Concept / Approach:
Distinguish between defining constituents (cocoa/cacao derivatives) and add-ons (nuts, milk) or packaging (wrapper).

Step-by-Step Solution:
Without cocoa (or cacao derivatives), the product is not chocolate.Wrappers are packaging, not content; nuts are optional; milk is present in milk chocolate but absent in dark chocolate.

Verification / Alternative check:
Ingredient lists for chocolate always trace to cacao solids or cocoa butter.

Why Other Options Are Wrong:
They are optional or external to the edible content.

Common Pitfalls:
Assuming milk is universal because of “milk chocolate” popularity.

Final Answer:
Cocoa