Which of the following are reflex angles?

Angle I is not an reflex angle because it is less than 180°.

As for angle II, it is a reflex angle. This is because this angle is between 180° and 360°.

Angle III is a reflex angle for the same reason as above.

Angle IV is not a reflex angle.

Clearly, only II and III are reflex angles. Hence, the answer is C.

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