How does the shape of vomerine teeth help it preform its function?(holding prey) This question is about frogs in case there is any confusion

The shape in V of the vomerine teeth is useful to hook the prey and hold it until the frog can swallow it.  

Explanation:  

In frogs, we can distinguish maxillary teeth, premaxillary teeth, and Vomerine teeth.

Vomerine teeth are projections of the vomer bone, located in the anterior part of the paladar and between the internal nares.

Vomerine teeth are specialized structures that help frogs catch and hold their prey. They are not involved in chewing or killing (frogs swallow the entire prey alive), just holding the creature before swallowing it.

These projections are covered by soft tissue. When the frog catches the prey, presses the tongue against the roof of your mouth. The vomerine teeth hook the prey and prevent it from slipping or wandering away.

The shape in V of the vomerine teeth is useful to hook the prey and hold it until the frog can swallow it.

if you listed your answers right then i believe your answer is b.