Study the following Information to answer the given questions: In a certain code ‘a friend of mine’ is written as ‘4 9 1 6’, ‘mine lots of metal’ is written as ‘3 1 0 9’ and ‘a piece of metal’ is written as ‘7 1 6 3'. What does '0' stand for ?
1)mine
2)metal
3)of
4)lots
5)a

Explanation

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