In a scissors crossover, the crossings 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

• A. (i) and (iii)
• B. (i) and (iv)
• C. (ii) and (iii)
• D. (ii) and (iv)