Which point represents the vertex of the marked angle?

Answer:
E
Step-by-step explanation:
Given : ∠AEC
To Find: Which point represents the vertex of the marked angle?
Solution:
Vertex is a corner or a point where lines meet.
Arms of ∠AEC are AE and EC
So, these arms meet at point E
According to the definition of vertex
E is the vertex of ∠AEC
Hence E point represents the vertex of the marked angle