Answer:
The correct option is A) Either LL or Ll
Step-by-step explanation:
A dominant allele can be described as the allele which masks the effect of a recessive allele. A recessive allele can be described as the allele which gets suppressed by a dominant allele.
For a dominant trait to occur the organism might be homozygous dominant for the trait or it might be heterozygous for the trait. In the above scenario, the fruit fly will be able to have long wings if it has a dominant genotype i.e LL or a heterozygous genotype i.e Ll.
However, for a recessive trait to occur both the allele will have to be recessive.