What is the resultant value of 5 // 2?

The operation represented by "//" is known as floor division in Python and some other programming languages. Floor division divides two numbers and then rounds down to the nearest whole number. In this case, when you perform the floor division of 5 by 2, the division yields 2.5. However, because we are using floor division, we take the greatest integer that is less than or equal to the result of the division.

Thus, the result of 5 // 2 is 2, as it rounds down from 2.5 to the next whole number, which is 2. This makes option C the correct choice. The other options do not represent the floor division outcome, as they either give the exact division result or imply a higher integer result than what floor division produces.