Hi Marcia,
I too got all the answers right, but at first I didn't realize that the "View the answers to the quiz" blue text was a link (maybe it should be underlined) - I read through, didn't find your answers, then came back to the link.
The first question is open to argument (though I chose the right answer), IMHO there isn't a real right or wrong answer for that one - they are simple strategy considerations, and a couple of the other 3 answers for that question can be very valid responses depending on the type of site produced.
I think you are onto something here with the interaction - you might consider making the navigator give their email to get the answers (and receive, say, a free report that explains in depth your answers, and how you came to know them, with stats, studies, etc.). This is what I would do anyway. You'd probably get a pretty high sign-up rate! Not to mention a foot in the door...
Here's another powerful idea (geeze, I should do this

):
You could even consider making it a longer quiz (say 25 questions), use clickable buttons for the answers, then have them click a button at the end to get their personalized results and free report (to which they would have to give you their email address). For each score level, you could give a brief title...
25 = Super Marketer (if you aren't already making a fortune, you should be)
24 = ....
1 = Yikes! Call me immediately for help!
Would require some good programming, but it could be fun, and give you a good list to work with... my 2 cents. It would certainly be unique!
I hope this helps,
Tim