A painter would use Brushstrokes to form an argument.
Option (b);
<u>EXPLANATION:</u>
A painter expresses his ideas through his paintings. He uses paint and brushstrokes to create his paintings and form an argument.
The paintings communicate through visual images. Just like physical expressions and movements of a person expresses a person's ideas or emotions.
Similarly, the range and quality of brushstroke conveys the thoughts and feelings of a painter. The way he uses his brushstrokes and moves the brush, it voices his feelings.