+**5c1** signifies a basic [Combinations](/wiki/Combinations) value: the number of ways to select one item from a group of five distinct elements. This [Binomial Coefficient](/wiki/Binomial_Coefficient) always equals five, illustrating the distinct choices available.
+## See also
+- [Combinatorics](/wiki/Combinatorics)
+- [Permutations](/wiki/Permutations)
+- [Probability](/wiki/Probability)
... 1 more lines