Assume a Double Crossover Occurs in This Pair of Chromosomes

Multiple Choice

Assume a double crossover occurs in this pair of chromosomes that results in chromatids of the genotype AbC and aBc.If the first crossover (the one between A and B) involves chromatids 1 & 4, which chromatids could be involved in the second crossover?

A) 1 & 2 or 3 & 4
B) 1 & 3 or 2 & 4
C) 1 & 4 or 2 & 3
D) 1 & 3 or 1 & 4 or 2 & 3 or 2 & 4
E) any two of the four chromatids