A man starts walking in the north -eastrly direction from a particular point. After walking a distance of 500 metres, he turns southward and walk a distance of 400 metres. At the end of this walk,he is situated

• A. 300 metres north of the starting point
• B. 100 metresnorth-east of the starting point
• C. 300 metres east of the starting point
• D. 100metres north of the starting point