The greatest eccentricity which a load W can have without producing tension on the cross-section
of a short column of external diameter D and internal diameter d, is
(A) 4W/ (D² - d²)
(B) (D² - d²)/32D
(C) (D² + d²)/8D
(D) (D² - d²)/8D
of a short column of external diameter D and internal diameter d, is
(A) 4W/ (D² - d²)
(B) (D² - d²)/32D
(C) (D² + d²)/8D
(D) (D² - d²)/8D