Geometry

The correct answer is C. ∠HGF.

 

1. Analyze the angle ∠c:

The angle ∠c has vertex . The two rays that form this angle start from  and pass through  and .

 

2. Evaluate each option:

A: In standard angle - naming, we don't include the angle label () within the three - letter name. So this is incorrect.

 

B: The vertex of this angle is , not , so it is not the correct name for ∠c.

 

C: Here, the vertex is

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