Consider the Following Statements: Struct RectangleData

Consider the following statements: struct rectangleData
{
Double length;
Double width;
Double area;
Double perimeter;
};
RectangleData bigRect;
Which of the following statements is valid in C++?

A) cin >> bigRect.length >> width;
B) cout << bigRect.length;
C) cout << bigRect;
D) cout << length;