The correct answer is C. ∠FHE.
1. Analyze the angle marked ∠1:
The angle marked ∠1 has vertex . The two rays that form this angle start from and pass through and .
2. Evaluate each option:
A: This angle includes both ∠1 and ∠2, so it is not the correct name for the angle marked ∠1.
B: At vertex , there are multiple angles (∠1 and ∠2), so using a single - letter name