Remya starts from her office towards South. After walking a distance of 15 km, she turned towards left and walked 10 km. She then turned right and after moving a distance of 20 km, turned to her left and walked 20 km. She then turns to the right and walks 15 km. Finally, she turns to her right. In which direction is she walking now ?
AEast
BWest
CNorth
DSouth