Roundabout Methods of Production Are Said to Be Productive

Roundabout methods of production are said to be productive. What does this mean?

A) Goods are best produced by many people working together-as in a circle.
B) If you go round and round thinking about something, you will usually come up with the right way to do it-so you minimize on mistakes.
C) If you take the most direct route to producing a good, you will save time, and time is something that producers want to save since "time is money."
D) If you take time out to produce a capital good, with that capital good you can produce more than you could produce without it.