4. The friction point is the point
(a) where the vehicle starts to move.
(b) where you feel the engine turn off.
(c) when you suddenly release the clutch.
(d) none of the above

Which one from below is not one of the reasons of planning failures? (clo3) a)-planner is careless. b-planner spend less time in the field but more time on the desk c)-planner is not qualified d)-planner does not have sufficient time to properly plan