Which is not a factor that can cause a change in supply?
options:
a. productivity
b. technology
c. business model
c. cost of resources

It is Business Model (C)

Explanation:

Option (A) False. An increase in the productivity of a factor of production will reduce unit cost of production and thereby causes supply to increase.

Option (B) False. Improvements in technology increases the productivity of the company which results in an increase in supply. It also reduces unit cost of production in the long-run.

Option (C) True. This is  an internal approach to successful operation of the business. Hence, it shouldn't cause changes in supply

Option (D)False. A change in production costs will affect the quantity that can be supplied.

the page presents four different kinds of threats that volcanoes pose and what to do before, during, and after an eruption.