replace cracked iPhone 5c?

Hey!!!

I dropped my phone and the screen cracked, the phone can still be used... But due to the screen being cracked around the home button it keeps getting stuck and doesn't let me do much except talk to Siri :-/ which is very aggravating!!!! To fix the issue do I need to but just the replacement glass w/ digitizer or do I need to buy the glass, LCD screen, & digitizer?? I added a link to a picture of my phone in case someone may need to see what I mean!

Thanks for y'all's help

http://s22.postimg.org/7h5wowyyp/image.j...