The two thigh bones (femures), each of cross-sectional area 10 cm² support the upper part of a person of mass 50 kg. The average pressure sustained by the femures is
(1) 2.5 x 10⁵ N/m²
(2) 5 x 10⁵ N/m²
(3) 4 x 10⁵ N/m²
(4) 10⁶ N/m²