It's no secret that parking in the city is a bitch. So we've enlisted local parking guru and author of Finding the Sweet Spot, David La Bua, to dish out weekly tips on navigating the ins and outs of city parking.

It's time for another parking quiz! This week's question:

What is the Most Expensive SF Parking Citation?

A) Parking in a bus zone

B) Parking on City Hall steps

C) Misuse of a disabled placard 

D) Parking on railroad tracks

E) Driving through and parking on a parade route

F) Parking in a crosswalk

Tell us your answer in the comments below!