How many of the 44 offspring with grey bodies and long wings would be expected t

In Drosophilia ebony body colour is caused by the recessive allele eb and grey body colour by the dominant allele eb+. Vestigal wings are produced by the recessive allele vg and long wings by the dominant allele vg+.

When mated, a female with ebony body colour and vestigial wings produces the following offspring.

41 flies with ebony body and long wings
44flies with grey body and long wings
39 flies with grey body and vestigial wings
46 flies with ebony body and vestigial wings

How many of the 44 offspring with grey bodies and long wings would be expected to be heterozygous for body colour?

Question options:
   
a. 44
b. 33
c.11   
c. 22

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