According to I.B.R., shearing resistance required to shear off the rivet per pitch length (in double shear) is (where n = Number of rivets per pitch length)

A. (π/4) d² × τ × n

B. 1.875 × (π/4) d² × τ × n

C. 2 × (π/4) d² × τ × n

D. 3 × (π/4) d² × τ × n

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