The correct option is B Racemose head
In a racemose head type of infloresence, the peduncle is somewhat flattened to form a receptacle that bears small sessile flowers called florets. The florets may be tubular or lingulate. This type of inflorescence is seen in sunflower. In sunflower, the central disc florets are bisexual and tubular while the peripheral ray florets are sterile or female and ligulate. So, the correct option is 'Racemose head'.