Which of the following correctly depicts the aestivation of petals in the flower of cotton?

Step-by-step solution

The mode of arrangement of sepals or petals in the floral bud with respect to the other members of the same whorl is known as aestivation. The main types of aestivation are valvate, twisted, imbricate, and vexillary. In pea and bean flowers, there are five petals, the largest (standard) overlaps the two lateral petals (wings) which in turn overlap the two smallest anterior petals (keel); this type of aestivation is known as vexillary or papilionaceous (Figure A). When sepals or petals in a whorl just touch one anot