The correct option is B Inflorescence
When there are two clusters each with 3-9 flowers on a node in the axis of opposite leaf and each cluster has a condensed dichasial cyme ending in monochasial cyme and flowers have lever mechanism it represents Verticillaster.
A cymose inflorescence arranged in pairs at the nodes, in the manner of a false whorl, is called as a verticillaster. A reduced raceme or cyme that grows in the axis of a bract is called a fascicle. A verticillaster is a fascicle with the structure of a dichasium; it is common among the Laminaceae. Many verticillasters with reduced bracts can form a spicate (spike-like) inflorescence that is commonly called as a spike.
Therefore, the correct answer is option B.