C.The 365-day year has been subdivided a number of ways over time; the current 12 months of not-quite-uniform length with exceptions every 4 and every 100 years is undoubtedly messy. The French revolutionary calendar had 12 30-day months plus a 5 (or presumably 6) day "intercalary" period, but even that feels suboptimal.
Clearly the correct solution is five 73-day months. At least then the only variance is the leap year.
"My birthday is Julgustber 59th."
Crazypedia won't Comply