Industrialization encouraged empire building because

a nation's need for products to sell to citizens could be met.

a nation's need exceeded the kind of raw materials the nation had.

the nation needed the expertise of the colonists.

the nation needed the workforce that colonists could provide.

The correct answer is a nation's need exceeded the kind of raw materials the nation had.

Imperialism partially arose from the need to obtain vaster supplies and raw materials for the different European economies. Hence, imperialism developed, in some aspects, as a direct effect of the industrial revolutions that were taking place over Europe through the nineteenth century.