When Will a Purchaser of Goods NOT Be Considered a 'Consumer

When will a purchaser of goods NOT be considered a 'consumer' under the Australian Consumer Law?

A) If they purchase a commercial road vehicle valued at more than $40,000.
B) If they purchase goods for personal or domestic use valued at more than $40,000.
C) If they purchase goods valued at less than $40,000 for use in the course of a small business.
D) If they purchase goods valued at less than $40,000.