Which of the following is true?

Options

A. Umbel is a racemose inflorescence where all the stalked flower aggregate on the flat receptacle.
B. Racema is a racemose inflorescence having main axis shortened and flowers borne acropetally.
C. Spadix is racemose inflorescence having pendulous spike with main axis much flattened.
D. Spike is a racemose inflorescence having sessile flowers.

Answer

d