A professional entrepreneur is someone who is always looking for new business opportunities.
They create a business, develop it to a successful level, and once it becomes self-sustaining, they exit the venture.
Their focus is not to stick with one business for life, but to repeat the process and build new ventures again and again.
Unlike an industrialist, who often manages large production units long-term, or a technical entrepreneur who focuses on technology innovations, a professional entrepreneur’s main skill is starting and nurturing businesses.
Therefore, the correct answer is option (A).