Task: Class Definition Understanding (ontology: Earth_Environment/EnvironmentOntology)

Which of the following definitions best describes 'mandibular prominence'?

A. An animal house where fowl are kept.
B. A terrestrial exoplanet which is at least ten times the mass of Earth.
C. A paint that exhibits luminescence, giving off visible light through fluorescence, phosphorescence, or radioluminescence.
D. The paired ventral prominences formed by bifurcation of the first pharyngeal arches in the embryo; the two prominences unite ventrally and fuse to form the mandible and lower lip.

Answer: The paired ventral prominences formed by bifurcation of the first pharyngeal arches in the embryo; the two prominences unite ventrally and fuse to form the mandible and lower lip.