Which of the following are the principles of material handling?
1. Keep all handling to the minimum.
2. Move as few pieces as possible in one unit.
3. Move the heaviest weight to the least distance.
4. Select only efficient handling equipment.
Select the correct answer using the codes given below:
(a) 1,2,3 and 4 (b) 1,3 and 4
(c) 1,2 and 3 (d) 2 and 4