A product sells for $15 per unit and has variable cost of $9 per unit. The fixed cost for the period are $360,000. If the variable cost per unit were to decrease to $7.50 per unit and fixed cost increase to $450,000, the number of units required to break even would;

A. Increase by 20,000

B. Equals 6,000

C. Increase by 6,000

D. No change