When A stand while his right is being infringed by B, Applying Section 115, Indian Evidence Act.
Which of the following conditions would the rule of estoppels by the acquiescence apply?
(i) B must be mistaken as to his legal rights
(ii) B must expend money or do some act on the faith of his mistaken belief
(iii) A must know his own rights and must know of B’s mistaken belief
(iv) all of them