Below Are Statements Regarding Either Push or Pull Manufacturing

Below are statements regarding either push or pull manufacturing.Select the incorrect ones.
1) Well implemented pull systems have high levels of customer service
2) Pull uses short and flexible production runs compared to push
3) Push uses short and flexible production runs compared to pull
4) Push manufacturing typically has longer lead times

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