The Ganzt civilization, one of the earliest farming civilizations to exist in South America, mysteriously disappeared sometime around 2500 BC. Archaeologists long believed that the Ganzt's sudden decline was caused by overhunting because fossil records suggest that several species of boar and deer upon which the Ganzt were dependent went extinct around that time. Recently, however, archaeologists have begun to reject that theory, believing instead that the Ganzt's decline was in fact due to a critical Amazon tributary drying up suddenly.
Which of the following, if recently discovered, would help account for the change in the accepted explanation of the disappearance of the Ganzt civilization?
(A) Written records explaining that while the Ganzt people did grow food, they also depended heavily on hunting forest animals for sustenance.
(B) Chemical analysis of Ganzt remains revealing that the civilization's diet consisted mostly of freshwater river fish such as rainbow trout and salmon.
(C) The discovery of the remains of a number of tribes that managed to survive around the Amazon river and its various tributaries until around the year 2500 BC.
(D) Artifacts proving that the Ganzt developed a primitive farming system that depended on rainfall rather than complex irrigation from the Amazon river.
(E) Evidence that the sudden climate shift that dried several small Amazon river tributaries around the year 2500 BC changed the humidity level of the South American continent.
Which of the following, if recently discovered, would help account for the change in the accepted explanation of the disappearance of the Ganzt civilization?
(A) Written records explaining that while the Ganzt people did grow food, they also depended heavily on hunting forest animals for sustenance.
(B) Chemical analysis of Ganzt remains revealing that the civilization's diet consisted mostly of freshwater river fish such as rainbow trout and salmon.
(C) The discovery of the remains of a number of tribes that managed to survive around the Amazon river and its various tributaries until around the year 2500 BC.
(D) Artifacts proving that the Ganzt developed a primitive farming system that depended on rainfall rather than complex irrigation from the Amazon river.
(E) Evidence that the sudden climate shift that dried several small Amazon river tributaries around the year 2500 BC changed the humidity level of the South American continent.
