I need help sloving this applied statistics question

A group of adult males has foot lengths with a mean of 27 . 26 cm and a standard deviation of 1 . 22 cm . Use the range rule of thumb to identify the limits separating values that are significantly low or significantly high . Is the adult male foot length of 30 . 0 cm significantly low or significantly high ? Explain . Significantly low values are\\\\ cm or lower . ( Type an integer or a decimal . Do not round . ) Significantly high values are | | cm or higher . ( Type an integer or a decimal . Do not round . ) Select the correct choice below and fill in the answer box ( es ) to complete your choice . OA . The adult male foot length of 30 . 0 cm is significantly high because it is greater than\\\\ |cm . ( Type an integer or a decimal . Do not round . ) OB . The adult male foot length of 30 . 0 cm is not significant because it is between\\\\ cm and cm . ( Type integers or decimals . Do not round . ) Oc. The adult male foot length of 30 . 0 cm is significantly low because it is less than\\\\ cm. ( Type an integer or a decimal . Do not round . )