In Mendel's first set of experiments, all of the offspring presented the same form of each trait. Which of the following statements summarizes his first set of experiments? A. Mendel crossed pure-breeding plants with the same form of each trait. B. Mendel crossed nonpure plants with the same form of each trait. C. Mendel crossed pure-breeding plants with non-pure plants with the same form of each trait. D. Mendel crossed pure-breeding plants with different forms of each trait. APEX PLS HELP