How do I make it work?!?

 The instructions on the back of my new clock are confusing.  Do I need a C battery, or not?  Perhaps I need two AA batteries, which are included?  Perhaps some other alternative energy source is provided-solar panels or fusion-but when that runs out I’ll need a C battery, which is not included.  What if I’m not in the USA, the only country where this statement is applicable, is the battery included or is there a different power requirement altogether?  What would happen if my husband took this on a business trip to the UK?  Would he get additional clarification?

My friends, the answer, if required, is not included.