A, B and C start at the same time in the same direction to run around a circular stadium. A completes a round in 252 seconds, B in 308 seconds and c in 198 seconds, all starting at the same point. After what time will they again at the starting point?

1. A Option A: 26 minutes and 18 seconds
2. B Option B: 42 minutes and 36 seconds
3. C Option C: 45 minutes
4. D Option D: 46 minutes and 12 seconds

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