Task: Question Answering
Input (English): The presence of homologous structures in two different organisms, such as the humerus in the front limb of a human and a bird, indicates that
(A)the human and bird are polyphyletic species (B)a human's and bird's evolution is convergent (C)the human and bird belong to a clade (D)the human and bird developed by analogy
Output (English): C