In a scissors crossover, the crossing provided are
(i) 2 obtuse angle crossings
(ii) 4 obtuse angle crossings
(iii) 4 acute angle crossings
(iv) 6 acute angle crossings
The correct answer is
1
(i) and (iii)
2
(i) and (iv)
3
(ii) and (iii)
4
(ii) and (iv)