Which of the following is not an example of convergent evolution ?

(C) Fore limbs of whales and bats
Convergent evolution is the process by which unrelated or distantly related organisms evolve similar structures or adaptations due to similar environmental pressures. These structures are called analogous organs.
Flippers of penguins and dolphins, eyes of octopuses and mammals, and wings of butterflies and birds are all examples of analogous organs, representing convergent evolution.
Forelimbs of whales and bats share the same fundamental anatomical bone structure (humerus, radius, ulna, carpals, metacarpals, and phalanges) but are adapted to perform different functions (swimming and flying, respectively). These are homologous organs, which represent divergent evolution.
Therefore, the forelimbs of whales and bats are not an example of convergent evolution.