What are the features of a Victorian Brownstone house in Boston？

What are the features of a Victorian Brownstone house in Boston？
A.It’s often a 2 or 3-story townhouse.
B.The facade is built with brownstone only.
C.The facade is built with brownstone or brown-colored bricks.
D.It has a stoop.
正确答案：It’s often a 2 or 3-story townhouse.The facade is built with brownstone or brown-colored bricks.It has a stoop.