a.     the brick must be preserved.

b.      the brick must be removed in order to restore the original facade.

c.     the brick may be preserved if the owner chooses.

d.     it is unlikely that the underlying structure has been  damaged.

RIGHT

The guidelines are intended to guide changes that owners plan to make to historic buildings. They  do not force the owners to make any changes. If later additions do not severely endanger the structure, they may be preserved.