Correct option is C
According to the Bureau of Indian Standard(BIS) for a drawing sheet the ratio of length to breadth should be 1: √2
Different length and breadth of different type of sheet are given as follows:
Designation Dimension (Length x Breadth)
A₀ 841 x 1189
A₁ 594 x 841
A₂ 420 x 594
A₃ 297 x 420
A₄ 210 x 297
