The correct answer is C) Different natural resources and climate.
Although you forgot to include the map, doing some research we can say the following,
The main reason why the variety of products were available in the three regions of the colonies was "Different natural resources and climate."
The white British colonists founded the English colonies in different parts of the Northeast coast of the United States. Of course, different regions have different kinds of soils, raw materials, natural resources, and weather conditions.
For instance, the Jamestown, Virginia, colony that was established in 1607, was famous for its tobacco crops. Indeed, it was known that tobacco was the king of crops in Virginia.
The colonies in Massachusetts were not agricultural colonies because the soil was rocky, not fertile, and had bad weather conditions. Instead, they were good fishermen.
On the other hand, the Middle Colonies were known to be the "breadbasket colonies" because they grew very good crops due to the fertile soil and favorable weather conditions.
