The following are the constituent steps in the process of powder metallurgy?
1. Powder conditioning
2. Sintering
3. Production of metallic powder
4. Pressing or compacting into the desired shape
Identify the correct order in which they have to be performed and select the correct answer using the codes given activity?
(a) 1, 2, 3, 4 (b) 3, 1, 4, 2 (c) 2, 4, 1, 3 (d) 4, 3, 2, 1