All three sentences are correct and possible, but A is probably a bit more likely to occur, then B and finally C. " For the afternoon" is a more common collocation but " in the afternoon" is also possible but with a very slight difference in meaning
The administrator has disabled public write access.
Sorry, your computer has not been setup for recording from the browser. www.claritysupport.com shows you how to make it work. If you have already downloaded the Clarity Recorder, run it now and you will be able to record your own voice.