Question: To grate butter for use in pastry without the butter melting.

  Options: 
 A. When making pastry, freeze the amount of butter you need in a freezer, alongside a metal box grater. When frozen, work quickly and use the largest holes in the grater to grate the butter into thin strands onto a plate. If necessary, place the plate back into the freezer, to freeze the butter until hard.
 B. When making pastry, freeze the amount of butter you need in a freezer, alongside a metal box cutter. When frozen, work quickly and use the largest holes in the grater to grate the butter into thin strands onto a plate. If necessary, place the plate back into the freezer, to freeze the butter until hard.
Answer: A