Which statement would be best fit into this historical narrative

The Cold War led the Soviet Union to build a powerful military and

invest heavily in new technologies such as space travel.

on apex

in contrast, the biological controls are self-sustaining, inexpensive and very effective once established. biological control could be used on thousands of golf course acres, improving their biodiversity and quality as wildlife habitat. in the process, the golf industry will be shown to be leaders in an environmental stewardship program of benefit not only to the lands they manage but also to the watersheds in which they exist.