Topic: Synonyms, Subject: English Grammar (ইংরেজি গ্রামার)

Best Answer Explained in Below-:

The word "competent" refers to having the necessary ability, knowledge, or skill to do something successfully. In this context, the synonym that best captures this essence is "capable," which means possessing the qualities or abilities necessary to achieve a particular task or goal.

Looking at the other options:

- **A) Circumspect**: This word means being cautious or careful, particularly in considering potential risks or dangers. It does not directly relate to one's ability to perform a task.

- **C) Discrete**: This term signifies being separate, distinct, or individually separate. It does not convey any implication of skill or competence.

- **D) Prudent**: While this word refers to being wise or judicious in practical affairs, it focuses more on careful decision-making rather than the broader notion of ability or skill.

Thus, "capable" aligns directly with the definition of "competent," making it the most appropriate synonym in this context.