Raw meat or prepared food? Which lasts longer? - Short term
Option C lasts longest, then option A, with option B being the shortest. 

When you have no other information, the official fridge life of any cooked meal is 3-5 days, starting from the day you cooked it, and no matter how old or fresh the ingredients were. 

When you have information from the producer, as in the case of your label, then this information supplants any standard assumptions. So your raw meat will last for a full week, assuming you cook it all at once. This is longer than the 3-5 days. 

The information on the label assumes that the package stays closed. The moment you open it, the date on the label becomes irrelevant, and you are left with the typical fridge life of ground meat, which is 1-2 days. So you cannot cook small portions every day for a week. 

Freezing "stops the clock" on shelf life, so it lasts as long as you want it to. 

The answer about "This helps to kill bacteria which will otherwise make the meat go bad." is based on oversimplified reasoning which is not in line with food safety standars. For more info on this and other typical myths, see https://cooking.stackexchange.com/tags/food-safety/info.