In gating system deign, which one of the following is the correct sequence in which choke area, pouring time, pouring basin and sprue sizes are calculated?
(a) Choke area- pouring time – pouring basin – spre
(b) Pouring basin – sprue – choke area- pouring time
(c) Choke area- sprue- pouring basin- pouring time
(d) Pouring basin- pouring time- choke area- sprue.