What is Signature?

• A. The operation‚Äö√Ñ√∂‚àö√ë‚àö¬•s class (in object-oriented designs) or module (in non-object-oriented designs)
• B. The operation name, the names and types of its parameters,and its return type
• C. A sentence or two informally stating the operation‚Äö√Ñ√∂‚àö√ë‚àö¬•s responsibilities
• D. A detailed description of the algorithm and data structures used to implement this operation