The method given by Biot for solving the problem of stress distribution was based on ________
(a) Theory of elasticity
(b) Method of superposition
(c) Westerngaard method
(d) All of the mentioned
I had been asked this question in an internship interview.
This key question is from Stress Distribution in the Vicinity of Shafts in portion Shafts, Tunnels and Conduits of Geotechnical Engineering II