The correct option is A Verticillaster
A biparous cyme ending in uniparous cyme constitutes the verticillaster. Verticillaster inflorescence is an inflorescence in which the flowers are arranged in a seeming whorl, consisting in fact of a pair of opposite axillary, usually sessile, cymes, as in many mints. A verticillaster is a fascicle with the structure of a dichasium; it is common among the Lamiaceae. 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 A.