Convergent evolution
Divergent evolution
Mutation
Atavism
Convergent evolution refers to the kind of evolution wherein organisms evolve in the analogous structures or functions in spite of their evolutionary ancestors being very dissimilar or unrelated. Here, the wings of bats, birds, and insects evolved independently from each other i.e, their ancestors are different, but all are used to perform the function of flying.So, the correct answer is option B.