The correct option is B Epiphyllous
Androecium is the male reproductive whorl and is made up of units called stamens. The stamens can be free or sometimes attached to other whorls in the flower. The attachment of the stamens to the perianth (a whorl where the petals and sepals are not differentiated are called tepals) is described as epiphyllous.
When stamens are attached to the petals, it is called epipetalous.
When all the filaments are fused to form a single bundle and the anthers are free, it is called monadelphous. A staminode is a sterile stamen.