10. Which breed became prolific when flocks were abandoned due to drought or lack of profit and slowly built up from escapees of shepherd flocks?
A. Angora
B. Australian Goat
C. British Alpine
D. LaMancha

The correct answer is B. Australian Goat.

Explanation

During the 18th century, Australian settlers brought goats to Australian territory and settled throughout the country. However, after a long drought, the grazing of goats was not profitable, so their owners had to release them, and many of them had previously escaped and had survived drifting out of the dry areas. This caused them to reproduce and increase their population. Therefore, the correct answer is B. Australian Goat.