CAN ANYONE ANSWER THIS URGENTLY?

OPTIONS ARE A)C6H5OC2H5 B)C2H5OC2H5 C)C6H5OC6H5 D)C6H5I

'x' gm of a compound A3B2C5 contains 'y' gm of A atoms

 

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how to represent the possible fischer projections for 2-bromohexane