Compare dates

Hi All,

Could you please help,,, I need a macro or a formula to check the deffirence between dates and give a reuslt in column c
column A column B Today() Column C results
11/09/2014 02/10/2014 < 1 month
05/08/2014 02/10/2014 1 -3 month
02/06/2014 02/10/2014 4-6 month
30/03/2014 02/10/2014 7-12 month
30/05/2013 02/10/2014 > 1 Year


Thanx and Regards