<prompt> Net reproduction rate is :Number of girl babies born to a womenNumber of babies born to a womenNumber of girl babies born to a women and taking into account only alive onceNone of the above  <response>: Total Fertility RateTFR : Number of babies born to a womanGross Fertility RateGFR : Number of girl babies born to a womanNet reproduction rateNRR : Number of girl babies born to a woman and taking into account only alive once. 