Which of the Following Statements Do Not Correctly Describe Push

Which of the following statements do not correctly describe push manufacturing?
1) The serial operations are independently optimized
2) Compared to pull, push manufacturing is a relatively new concept
3) Forecasts of demands is a significant factor in deciding on material flow
4) It focuses on maximizing inventory investment

A) (1)
B) (2) and (4)
C) (2)
D) (1) and (3)