A formal and respectful tone.
And please use punctuation and indention next time.
Answer:
What kind of conversation? do you mean messages or comments?
Answer:
<h2>C</h2>
Explanation:
<h3>In a linear perspective drawing, orthogonal lines are the diagonal lines that can be drawn along receding parallel lines (or rows of objects) to the vanishing point. These imaginary lines help the artist maintain perspective in their drawings and paintings to ensure a realistic view of the object.</h3><h3 />