(A): At plastic hinge rotation takes place without resisting any additional moment.
(R) : Plastic hinge is the section at which all fibres have yielded.
Correct option is:
(A) Both (A) and (R) are true and (R) is the correct explanation of (A).
(B) Both (A) and (R) are true but (R) is not the correct explanation of (A).
(C) (A) is true but (R) is false.
(D) (A) is false but (R) is true.