To what extent would a telegraph change military operations ?

The Telegraph changed military operations drastically.

Explanation:

The telegraph obviously made communication easier, and it helped to direct field operations. It was also used to plan strategies.

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.

the answer is option a.