a, b, and c are generic types. You need to supply an implementation of f that doesn't know anything about a, b, or c. How many such implementations are there? C

a, b, and c are generic types. You need to supply an implementation of f that doesn't know anything about a, b, or c. How many such implementations are there? Can you supply at least two, both of which finish running in a finite amount of time and neither of which produces any error?