Of which; within which; in which
In the examples below, please kindly point out the particular verb that determines the preposition to take
A) There is one policy missing from Table 2.0, details of which were provided to the insurance broker at the time where all insurance information was provided.
B) The Commissioner has an unlimited period within which to review and assess the trustee's tax position.
C) This document explains our practice of limiting the time in which we will raise an original income tax assessment for a trustee. Many thanks!