Which of the following is characteristic of computer-readable instructions?

Computer-readable instructions are specifically designed to be understood and executed by computers. Utilizing pseudocode for task execution is a key characteristic because pseudocode allows programmers to outline algorithms in a structured but readable format that mimics programming languages without being tied to the syntax of any specific one. This informal representation helps to bridge the gap between human logic and machine processing, making it easier to convert thoughts on algorithms into actual code later in the programming process.

In contrast, natural languages are often ambiguous and can have multiple interpretations, making them unsuitable for computer instructions. Imagery, while perhaps conveying information clearly, does not fit the criteria of being 'readable' in terms of instructions that a computer can execute. Additionally, providing instructions that assume extensive prior knowledge would not be practical for users or for the clear presentation of tasks; effective computer-readable instructions should aim for clarity and accessibility, rather than require specialized knowledge. Therefore, utilizing pseudocode stands out as the most fitting characteristic for computer-readable instructions.