Solve the Problem $\$ 800$ B) $\$ 8000$ C) $\$ 4$ D) $\$ 4000$

Multiple Choice

Solve the problem.
- What was the increase in sales between month 5 and month 6 of 1990 ?

A) $\$ 800$
B) $\$ 8000$
C) $\$ 4$
D) $\$ 4000$