5. A review of Zee Corporation's accounting records found that at a volume of 100,000 units, the variable and fixed cost per unit amounted to $4 and $8, respectively. On the basis of this information, what amount of total cost would Zee anticipate at a volume of 90,000 units?

a. $1,160,000

b. $1,080,000

c. $1,200,000

d. $1,120,000

e. $1,008,000