Your code example doesn't represent approach B). You are conflating verbosity with readability. A better example of B) in this context would be understanding t

Your code example doesn't represent approach B). You are conflating verbosity with readability. A better example of B) in this context would be understanding that IEEE 754 floating point numbers cannot be used for currency, and perhaps adding a comment about that. Meaning, really understanding what you are doing all the way, and understanding when it works and when it doesn't.