Explanation:

To identify which option is not a computer language, we must evaluate each choice. **Basic (a)** (Beginner's All-purpose Symbolic Instruction Code) is a well-known family of general-purpose, high-level programming languages. **C (b)** is a powerful, general-purpose, procedural computer programming language. **Fortran (d)** (FORmula TRANslation) is a high-level programming language specifically designed for numeric computation and scientific computing. All three (Basic, C, Fortran) are distinct and widely recognized programming languages. In contrast, **Fast (c)** is an adjective describing speed or quickness; it is not a programming language, a programming paradigm, or any recognized term in the context of computer languages. Therefore, 'Fast' is the item that does not belong to the category of computer languages, making option (e) incorrect.