Correct Answer: Active

Solution : The most appropriate choice is the third option.

Indolent refers to a tendency or disposition towards laziness or a lack of willingness to exert oneself, often resulting in avoiding activities or tasks that require effort or work.

The opposite of this would be active, which means engaging in action, being energetic, and not being lazy.

The meanings of the other options are as follows:

• Lazy describes someone who is unwilling or disinclined to work, exert effort, or engage in activities that require physical or mental exertion.
• Unskilled refers to someone who lacks proficiency, expertise, or training in a particular skill or set of skills.
• Sluggish refers to a lack of energy, slow movement, or a tendency to be inactive or slow in physical or mental responses.