Occupational Radiation Dose units - (yearly limits) as given by ICRP are: (A) 5 mSv per year and 10 mSV in 5 yr period (cumulative), (B) 50 mSv per year and 100 mSv in 5 yr period (cumulative), (C) 500 mSv per year and 2500 mSv in 5 yr (cumulative), (D) 5000 mSv per year and 5 Sv in 5 yr (cumulative)
Answer is B. None