The phone bill for a company consists of both fixed and variable costs. Refer to the four-month data below and apply the high-low method to answer the question. January February March April Minutes 460 200 170 310 Total Bill $3,000 $2,675 $2,660 $2,825 What is the variable cost per minute? (Round your answer to the nearest cent.) O A. $6.52 O B. $0.85 OC. $0.11 OD. $1.17