( A ) valvate, twisted, imbricate and vexillary arrangement of sepals is
( B ) The mode of arrangement of sepals or petals in floral bud with respect to the other members of the same whorl
( C ) The mode of arrangement of sepals or petals in floral bud
( D ) The mode of arrangement of sepals with respect to valvate, twisted, imbricate and vexillary arrangement
