Answer / Rahul Saini

In the context of C programming, '2n' and '4c' are not standard notations. It seems like a typo or a mix-up of mathematical notation (2n for '2 times n' and 4c for '4 times c') with programming syntax. In C programming, '2' and 'n' could be variables or constants, but they don't have any special meaning together as shown.

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