The following are the expected costs of a company in a particular period at three different production levels. Units of production output 1,000 1,500 2,000 Cost A $1,500 $2,250 $3,000 Cost B $4.5/unit $3/unit $2.25/unit Cost C $4,000 $5,600 $7,200 Cost D $3/unit $3/unit $3/unit Cost E $1,000 $1,000 $1,000 Required: What kind of cost is each of the five costs above in relation to cost behaviour? State your answer for each cost as Variable, Fixed, Mixed or No particular pattern