probleme with awk arguments

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Hello,
I have a problem with passing arguments for awk.
I set a variable C as charecter (or string). Then  put that variable as argument for awk.
Unfortuanatly, I go not get the needed result.
For example, in this example, I get the content of the file but I expect it write "g" as many lines as file file coran.pls contains
any input will help

[adel@localhost ~]$ C=g
[adel@localhost ~]$ awk  -v c=$C '{ print $c }' coran.pls
[playlist]
NumberOfEntries=10
File1=/home/adel/coran/105.mp3
File2=/home/adel/coran/106.mp3
File3=/home/adel/coran/107.mp3
File4=/home/adel/coran/108.mp3
File5=/home/adel/coran/109.mp3
File6=/home/adel/coran/110.mp3
File7=/home/adel/coran/111.mp3
File8=/home/adel/coran/112.mp3
File9=/home/adel/coran/113.mp3
File10=/home/adel/coran/114.mp3


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