After the Civil War, rebuilding the Southern economy was
a.
accomplished almost immediately
b.
one of the major problems facing the Union
c.
the responsibility of Texas
d.
not really necessary since little damage had been done

B. one of the major problems facing the Union

Explanation:

Not sure but that's what I would guess

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.