In designing a work desk, it is found that males have sitting knee heights with a mean of 21.9 in. and a standard deviation of 1.1 in. (based on data from theDepartment of Transportation). Use the range rule of thumb to identify (a) the values that are significantly low, (b) the values that are significantly high, and (c) thevalues that are neither significantly low nor significantly high.a. What heights are significantly low? Select the correct answer below and fill in the answer box(es) to complete your choice.(Type integers or decimals. Do not round.)OA. Heights that are greater thanB. Heights that are less than in.C. Heights that are greater thanin. and less thanin.***in.