If the product of two whole numbers is $$5$$, then one of the numbers is $$5$$ and the other is $$1$$. Their sum is $$6$$. 
The product of two whole numbers is $$5$$. What is the sum of these two numbers? 
Options:
[1] $$10$$ 
[2] $$6$$ 
[3] $$5$$ 
[4] $$4$$ 
[5] None of the above 