The correct answer is option 'c) Speech'.

Explanation:

Prose is a form of writing that is used to convey ideas and stories in a natural and straightforward manner. It is the most common form of writing and is typically used in novels, short stories, essays, and other forms of literature. Prose is characterized by its use of sentences and paragraphs to organize thoughts and ideas.

Similarly, Lisp is a programming language that is used to write computer programs. It was developed in the 1950s and is known for its unique syntax and powerful features. Lisp is primarily used in the field of artificial intelligence and is particularly well-suited for tasks that involve symbolic processing and manipulation.

Just as prose is a form of writing, Lisp is a form of speech in the context of computer programming. Lisp programs are written using a combination of words, symbols, and expressions that are used to represent ideas and instructions. These programs are then executed by a computer to perform specific tasks.

Lisp is often referred to as a "functional" programming language because it emphasizes the use of functions as a primary means of organizing and structuring code. Functions in Lisp can be thought of as analogous to sentences in prose. They are used to express ideas and carry out specific actions.

In addition to its use in programming, Lisp has also been influential in the development of other programming languages. Many modern programming languages, such as Python and JavaScript, have borrowed concepts and ideas from Lisp.

In summary, just as prose is a form of writing used to convey ideas, Lisp is a form of speech used to write computer programs. Therefore, the correct answer is option 'c) Speech'.