When proceeding behind a large-size motorcycle on a road where it is regulated to 'Sounding Zone', you sounded the car horn to let an oncoming vehicle know your vehicle was approaching the corner of the road. What is the purpose of sounding the car horn in this situation?
1) To alert the oncoming vehicle of your presence
2) To scare the large-size motorcycle
3) To signal the oncoming vehicle to stop
4) To communicate with the large-size motorcycle