Final answer:
When alarmed, some breeds of goats, particularly Myotonic or Tennessee Fainting goats, exhibit a behavior known as 'myotonic fainting' where they stiffen and appear to faint due to a genetic condition called myotonia congenita.
Step-by-step explanation:
When goats are alarmed, their behavior can vary depending on the breed and individual temperament, but one particularly notable reaction is known as ‘myotonic fainting.’ When startled, some breeds of goats, specifically the ‘Myotonic’ or ‘Tennessee Fainting’ goats, involuntarily stiffen and can fall over, appearing to faint. This is due to a genetic condition called myotonia congenita, which causes prolonged muscle contractions. To answer the student's question, option d) ‘faint’ is correct for this specific breed.
However, it's important to note that not all goats faint. Some may indeed “freeze in place” or run away when they feel threatened. Climbing trees is a behavior seen in some wild goat species when escaping predators or seeking food.