Context: Genkai shivered and growled at that thought . " I do n't see that happening as long as I ' m still walking this earth , " she grumbled . Kayla broke out laughing and stuck out her tongue saying , " We wo n't have to wait that long , she can go any minute now ! " She was so hysterical about it that she even got Genkai 's friends laughing and a smirk from Hiei . Genkai 's face turned red .

Question: Why did Genkai 's face turn red ?
Options:
0. He has allergies
1. He is overheating
2. He is embarassed
3. He is holding his breath
Answer: 2