A Construction Company That Specialises in Building Bridges Over Large

A construction company that specialises in building bridges over large areas of water should classify its assets as 'current', based on:

A) the 12-month period starting from the end of the current reporting period
B) the 6-month period starting from the end of the current reporting period
C) its operating cycle ...the time normally taken to construct such bridges
D) the 12-month period starting from the fourth month after the end of the current reporting period