Ivan, a master blacksmith, is assessing the restoration needs of a historic old church. The copper inlays in the altar have become tarnished over time. The brass fittings used in much of the church’s metalwork have become corroded in many places. A number of door handles have been stripped away by vandals. The massive crucifix behind the altar incorporates many custom pieces of metalwork, some of which have been stolen or irreparably damaged. What should Ivan tell the construction manager is likely to be the most significant restoration task before him on this project? restoring the crucifix

removing the corrosion on the brass fittings

cleaning the copper inlays

replacing the missing door handles