Please help me with Spanish!

<p>Hey guys I am going to sign up during CalSO in just a day or two and was wondering if anyone had any advice on whether I should sign up for Spanish 4 or 25. I did receive a 5 on AP Spanish and they say I should take 25 but I'm not sure how difficult it will be. Is there anyone that has taken either of these classes that could give me some advice?!!!!</p>