Answer: a. To control large territories directly.
Step-by-step explanation:
New Imperialism was a period of the expansion of colonies by the European powers, Japan and the United States. During these period, these countries seek ways to acquire territories and also controls the resources of the territories that they have acquired.
During this period, some part of Asia and Africa were conquered. Therefore, the motive for the new imperialism of the late nineteenth century in Asia and Africa was to be able to control large territories directly.