Directions: In the following question, four statements are provided between an opening statement 1 and a closing statement 6. The four statements are jumbled up and form a coherent paragraph when properly arranged. Select the alternative representing the proper and logical sequencing of these six statements.

1 An explanation for this almost unbelievable growth is provided by what Sagan calls the secret of Persian chessboard.

A. The shrewd vizier said that he was a humble man, and his request of a reward for the invention was a small one.

B. He, wanted the king to give him a single grain of wheat on the first square and twice on second and so on for all 64 squares.

C. According to his version, the Grand vizier of Persia invented a war game (known today as chess).

D. The king was amazed at the non demand of jewels or places.

6 And by the end, the doubling process resulted in 75 billion metric tons.