B. Stamen is the correct answer. It is the only part that belongs to the male flower. Stamen has anther which is a saclike structure where pollens are developed and filaments which act as the part of the flower which transports the pollen. Flowers usually has the same petals as their number of stamen. Various flowering plants have different types of stamen. Some are attached to the petals and some are not. When female flowers receive the pollens from the male flower’s stamen, the flowers reproduce.