Which one of the four figures was the designer of the two mansions

A．the stairwell and the skylight
B．the rich stucco molding
C．the handsome fireplaces
D．the magnificent woods

A．The old mansions will make place for a church school.
B．The old mansions were the last remaining two town houses in the city of the many designed by Alex ander Jackson Davis.
C．The old mansions had famous dwellers.
D．The church folk liked the idea of having the old mansions torn down.