How synchronized are our is it normal brains?

Hello everybody! I've decided to create a fun little experiment today and see how in-sync our brains are by using a joke that I once heard.

Pretend you're in this situation: You and the other is it normal members have just come back from an exciting trip. However, you remember that you all have an important exam test today. Not wanting to take the test, all of you come to an agreement and call up your professor. You tell the professor that you have not yet gotten back from your trip because you have a flat tire and ask if you can take the test tomorrow. The professor agrees and, the next day, you are all put into separate rooms for the test. On the front page is a few questions that you find to be extremely easy to answer. Turning the test over, you find one question that states, "Worth 95% of your grade. Which tire?"

So, let's see if we can ace this test.

Which tire?

*Note: I will hide any comments about what you voted for or telling other users what to vote for. Also, the poll choices are randomized.*