Philthrum is derived from-
Ans. C. Medial nasal processFrontonasal process is divided into:-i) Lateral nasal processes:From alae of nose.ii) Medial nasal processes:These merge with each other to form intermaxillary segment which gives rise to : philtrum (middle pa of upper lip),premaxillary plate.
Maxillary process
Mandibular process
Medial nasal process
Lateral nasal process