A.I. Explanation:

Option 1: "ask when you get on the coach."

Explanation: This option suggests asking for a seat upon boarding the coach. However, the text states that seat allocations are made on a first come first served basis, indicating that simply asking at that moment would not guarantee a front seat. Therefore, this option does not align with the text's emphasis on early booking.

Option 2: "arrive early on the departure date."

Explanation: While arriving early may seem beneficial, the text specifically advises that early booking is advisable for securing the best seats. Arriving early does not ensure a front seat unless a booking is made in advance, making this option incomplete.

Option 3: "book your seat well in advance."

Explanation: This option is correct as it directly aligns with the text's recommendation that early booking is advisable to secure the best available seats. The text emphasizes that seat allocations are made based on the order of bookings, making advance booking essential for sitting in front.

Option 4: "avoid traveling at peak times."

Explanation: This option suggests avoiding peak times to secure a seat, but the text does not mention peak times as a factor for seat allocation. The focus is on the importance of early booking rather than the timing of travel, making this option irrelevant.