Six students A, B, F, G, K and M are standing in a row (not necessary in the same order). B is taller than F but shorter than G. A is neither tallest nor shortest. G is Shorter than A. M is not tallest. Who among them is Shorter than F?

• A. G and B
• B. A and K
• C. Only M
• D. Only B
• E. Cannot be determined