Directions: Read the following comprehension and answer the following questions given below.

Eight people, A, B, C, D, E, F, G, and H got different marks in an exam out of 30. D got 16 marks. The marks of E is equal to the sum of the marks of A and C. B got 29 marks, which is equal to the sum of the marks of F and D. The difference between the marks of B and H is equal to the difference between the marks of E and D. B got  more marks than H and E got more marks than D. A got 11 marks. G got 21 marks, which is six more than C's marks.