Various evolutionary sequences have been worked out in the angiosperms which include:

A. Flowers with spirally arranged sepals, petals, stamens and carpels are more advanced than those with the cyclic, or whorled arrangement

B. Radial symmetry in flowers is the primitive condition, while bilateral symmetry is derived

C. The solitary flower is more advanced than the inflorescence

D. Trees and shrubs are more advanced than herbs

Answer: Option B