What is the newest software my macbook pro will run
I purchased a Macbook Pro 15" from a friend and it's running 10.5.8. The computer has a number of hang ups, it's fairly slow, and there is a great deal of software, bookmarks, etc left over. What is the newest software that I can upgrade to which this computer will handle. It's a 2008 model with a 2.4 Ghz Intel Core 2 Duo processor, 2 GB SDRAM, and Geforce 8600M GT graphics processor. I'd like to install a fresh version of the software as if it just arrived from the factory. I have read differing opinions as to what it will run so any help is greatly appreciated. Also, if it will run Mavericks will I have to purchase Snow Leopard as well?
MacBook Pro, Mac OS X (10.5.8)