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In which of the choices given below, the cutting tool materials are placed in the ascending order of permissible cutting sped for machining of steel?

(a) K Group Cemented Carbide-P Group Cemented Carbid-Ceramic –Cubic Boron Nitride

(b) Cubic Boron Nitride – K Group Cemented Carbide – P Group Cemented Carbide - Ceramic

(c) P Group Cemented Carbide – K Group Cemented Carbide – Cubic Boron Nitride - Ceramic

(d) Ceramic – Cubic Boron Nitride – K Group Cemented Carbide – P Group Cemented Carbide

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