Consider a square sheet of side 1 unit In the first step, it is cut along the main diagonal to get two traingles. In the next step, one of the cut triangles is revolved about its short edge to form a solid come. The volume of resulting come, in cubic units, is _____

• A. \(\frac{{2\pi }}{3}\)
• B. \(\frac{{\pi }}{3}\)
• C. 3π
• D. \(\frac{{2\pi }}{2}\)