Multiple choice A complete flower is the one which has calyx and corolla calyx, corolla and androecium corolla, androecium and gynoecium calyx, corolla, androecium and gynoecium Reveal answer Fill a bubble to check yourself D Correct answer Explanation A complete flower is defined by the presence of all four whorls: calyx, corolla, androecium, and gynoecium. If any of these are missing, the flower is considered incomplete.