Best Answer Explained in Below-:

The word "competent" refers to having the necessary ability, knowledge, or skill to perform a task or job effectively. In this context, it implies a level of proficiency and adequacy in a particular area. Among the given options, "capable" best aligns with this definition, as it also denotes the ability or capacity to do something successfully.

In contrast, "discrete" refers to something that is distinct or separate and does not relate to skill or capability. "Prudent" means exercising good judgment or foresight, primarily in terms of making wise decisions; it does not specifically convey the idea of skill or competence. Similarly, "cautious" pertains to being careful or avoiding risks, which does not inherently imply being skilled or competent at a task.

Thus, the choice "capable" reflects a direct synonym to "competent," reinforcing the notion of having the skillset or qualities necessary to accomplish something effectively. This clear alignment in meaning distinguishes "capable" as the correct answer.