Dahl Company,a Clothing Manufacturer,uses a Standard Costing System

Dahl Company,a clothing manufacturer,uses a standard costing system.Each unit of a finished product contains 2 metres of cloth.However,there is unavoidable waste of 20%,calculated on input quantities,when the cloth is cut for assembly.The cost of the cloth is $3 per metre.What is the standard direct material cost for cloth per unit of finished product?

A) $4.80.
B) $6.00.
C) $7.00.
D) $7.50.