An embankment is to be constructed with a granular soil (bulk unit weight $=20 \mathrm{kN} / \mathrm{m}^{3}$ ) on a saturated clayey silt deposit (undrained shear strength $=25 \mathrm{kPa}$ ). Assuming undrained general shear failure and bearing capacity factor of $5.7,$ the maximum height (in $\mathrm{m}$ ) of the embankment at the point of failure is

(A) 7.1

(B) 5.0

(C) 4.5

(D) 2.5

An embankment is to be constructed with a granular soil (bulk unit weight $=20 \mathrm{kN} / \mathrm{m}^{3}$ ) on a saturated clayey silt deposit (undrained shear strength $=25 \mathrm{kPa}$ ). Assuming undrained general shear failure and bearing capacity factor of $5.7,$ the maximum height (in $\mathrm{m}$ ) of the embankment at the point of failure is

(A) 7.1

(B) 5.0

(C) 4.5

(D) 2.5

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