Clicking a specific item within a drop down list

[rlew2008 at gmail.com]

What code would allow me to automatically select and click the "Quarterly" value from the drop-down box labeled "Statement Type" on the web page below.

I'm new to Python and have been struggling with this one. Any help is immensely appreciated. Thanks!

http://financials.morningstar.com/balance-sheet/bs.html?t=XNYS:MMM&region=usa&culture=en-US&platform=sal