Task: Question Answering
Input (English): In 1931, Barbara McClintock discovered that genes could change position on a chromosome. In corn plants, if a certain gene was moved next to the gene that controls kernel color, the kernels in an ear of corn were various colors. Which statement best supports McClintock's discovery?  
 (A) Genes control inherited traits in organisms. (B) Corn plants can reproduce in laboratory environments. (C) Chromosomes can move around in the nucleus of a cell. (D) Genes are able to disappear and reappear in later generations.
Output (English): A