DB Table Design For Checkboxlist Control

I was just wondering what would be a preferred approach in designing the tables against checkboxlist?

For example I have 3 checkboxlist:

chklVendor
chklModel
chklColor


and each will have lets say 4 - 5 list items.

Here are the different types of approaches that I've seen when designing database tables:

1. Creating tables for each checkboxlist.
2. Creating a single table and storing the values in a comma delimited format.
3. Using XML


Also these attributes will be used in the search form as one of the fields.