Consider a product that needs to go through three working stations $(1->2->3)$ to be completed. Here is workflow chart of the three stations between $9-10$am on a particular day under two working systems. The solid$/$dashed lines indicate that the corresponding workstation is busy$/$idle$.$ According to this chart, Figure $\_\_\_\_\_$ and $\_\_\_\_\_$ represent a push and a pull system, respectively. Figure $\_\_\_\_\_\_$ has less WIP inventory at $10$am$.$

network$-1.$png

Group of answer choices

a; b; a

b; a; a

b; a; b

None of the above