DIRECTIONS for questions: In each of the questions, four different ways of presenting an idea are given. Choose the one that conforms most closely to Standard English usage.
A. If precision of thought had facilitated precision of behaviour, and if reflection had preceded action, it would be ideal for humans.
B. It would be ideal for humans if reflection preceded action and precision of thought facilitated precision of behaviour.
C. It would be ideal for humans if precedence of reflection was followed by action and precision of thought, by precise behaviour.
D. It would have been ideal for humans, if precise action and behaviour preceded precise reflection.