Concept:Inclined lines in board drawing are made using a T-square as a support and a set square to guide the drawing.Explanation:The T-square is placed on the drawing board to give a straight horizontal reference.The set square is then placed against the T-square blade at the required inclination.Drawing along the edge of the set square produces the inclined line.A protractor is mainly for measuring angles, while compasses are used for circles and arcs.Answer:D. tee-square and set-square