Which of the following statements proves that A F is parallel to EF?

Options:
1. m∠BFG + m∠GFC = 180°
2. m∠DEB + m∠BEF = 180°
3. m∠GFC + m∠ICF = 180°
4. m∠FCA + m∠AEF = 180°
5. None of these options are correct.

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