Hi Tinamarie,

My friend and I are using both Becker & Gleim to study for Reg.  My recommendation is for you to work on the MCs with Becker.  For the question that you are not sure of, click on the tab with picture of the book & the mag glass, it'll direct you to the page where you can find the info to help you find the correct answer.  We both found that by looking at the information then try to select the right answer help us to retain the information better.  It'll take you longer to go through all of the MCs but this is the best way to learn if you don't like to listen to the lectures and not have enough time to read the book from start to finish.  Good luck!