An equilateral triangle is positioned in the first quadrant and is inclined at an angle of 30 degrees with the H.P and 30 degrees with the V.P. The top views while drawing projections in 1, 2 and 3 stages are _______ _________ and __________ respectively.

• A. line, equilateral triangle, line
• B. line, line, scalene triangle
• C. equilateral triangle, isosceles triangle, isosceles triangle
• D. equilateral triangle, isosceles triangle, scalene triangle