The correct option is B Mahoud
Let the marks scored by Charles, David, Hanish, Kedar, Mahoud, Ninja and Raul be represented by C, D, H, K, M, N and R respectively.
From (a), all scored distinct marks:
From (b), C > K > D
From (c), H > M, N > R
From (d), Kedar scored the fourth highest marks.
From (e), M > C
From (c), R is not the least marks scored.
D is the least.
From (b), (c) and (e), H > M > C > K > D
As K is the fourth highest score and D the lowest score and as N > R, N and R must be the fifth and sixth highest scores respectively.
H > M > C > K > N > R > D
Mahoud scored the second highest marks.