So today i went out started my car started just fine, it was about 10 degrees here and i havent drove my car for about a week. I go inside to finsih getting ready and i come out and my car is no longer running. I can crank it over. there is nothing. I havent had a chance to try and jump it cause i had to be at t jury trial. Could the alternator or battery cause this?

If it is the battery here are my options



If its the alternator ill just have mine rebuilt