Starting from point O, a person walks towards west facing 4 km and reaches point A. From there, he walks 4 km to the right and reaches point B, then he walks 4 km to the right and reaches point C. After that, he again turns right and walks 3 km to reach point D. Now he walks 4 km to the left and reaches point E. Then he turns right and walks 5 km and reaches F. The minimum distance (in km) between point A and point E is:

• A. \(5\sqrt 65\)
• B. \(\sqrt 68\)
• C. \(\sqrt 65\)
• D. \(2\sqrt 65\)