For which task is a sharp pencil tip most useful?

Correct answer: Making fine lines and details

The governing concept is selecting the pencil point according to the mark required. A sharp tip makes narrow, precise, and controlled lines, so it is most useful for fine details such as small edges, hair strands, or tiny features; option B is correct. A broad, even area is usually covered more efficiently with the side of the lead, while blending and wide texture effects need softer or broader contact rather than a sharp point.