20. Which quote from the text supports the central idea that sparrows are both adaptable and useful?
A "They immediately made themselves at home, and began nest
building and worm catching as eagerly as when in their native air."
B "Soon hundreds of these brown-coated little fellows were set loose in
different cities. They at once became public pets."
G. "He saw them bring food to the nest from thirty to forty times every
day, and each time from two to six caterpillars or worms were
brought."
D. "They are very social little birds, and are entirely happy amid the
noise and dirt and confusion of the crowded street.'