While most visitors to Washington, D.C., visit the well-known memorials, including the Washington Monument, the Lincoln and Jefferson memorials, and the more recent Vietnam Memorial Wall, a beautiful and lesser-known memorial is an environmental park that occupies 7.5 acres, it is the Franklin Delano Roosevelt Memorial.
A. Vietnam Memorial Wall: a beautiful and lesser-known memorial
B. No revision is necessary.
C. Vietnam Memorial Wall a beautiful and lesser-known memorial
D. Vietnam Memorial Wall; a beautiful and lesser-known memorial