I might add that Bunni got a kick out of Jeep drivers tipping their hands or waving at each other . See all the old cars ? Can you hear and smell the craziness ? There were lots of Harleys and motorcycles lining the streets , too .
According to the above context, choose the best option to answer the following question.
Question: What may be the reason for strangers waving at each other ?
Options:
- Because they are drunk .
 - None of the above choices .
 - Because of their similar interest .
 - Because they do n't want to be cordial .


Because of their similar interest .