Transfer to SDSU

I want to transfer to SDSU, but I am scared I won’t get in because I have 1 W. My gpa is a 3.62, but it is raising, however, I am going to apply this fall to transfer into Fall 2018; I am from the LA County. I want to know what I can do to “cover” up that W or to make myself look better. Also, is it better to explain why I got a W on the application or no? Thank you.