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# The African diary of Joao Infante, a 15th century Portuguese explorer

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Senior Manager
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Joined: 26 Sep 2017
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Location: India
Concentration: Finance, Technology
GMAT 1: 660 Q50 V30
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WE: Engineering (Computer Software)
The African diary of Joao Infante, a 15th century Portuguese explorer  [#permalink]

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21 Nov 2017, 02:21
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Difficulty:

15% (low)

Question Stats:

78% (01:23) correct 22% (01:23) wrong based on 93 sessions

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Which of following most logically completes the argument?

The African diary of Joao Infante, a 15th century Portuguese explorer, describes the Malagasy Hippopotamus – a now-extinct species of hippopotamus that existed in Madagascar – as a semi-aquatic herbivorous mammal with a small horn on its snout. But fossils of this animal discovered last year do not have any remains of the horn. This is no reason, however, to believe that Infante’s entries were incorrect, since _______.

A. the writings of almost all Portuguese explorers have been discovered to be extremely accurate.

B. later works by British and Spanish explorers written between the 17th and 19th centuries also describe the Malagasy Hippopotamus as a horned animal.

C. another species of African hippopotamus that currently exists also has keratin deposits which resemble a horn on its snout.

D. animal horns are composed only of the protein keratin and do not fossilize.

E. Infante is believed to have made his diary entries as and when he witnessed events, to preserve the accuracy of his writings

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Re: The African diary of Joao Infante, a 15th century Portuguese explorer  [#permalink]

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21 Nov 2017, 08:47
the Malagasy Hippopotamus had a small horn on its snout----- But fossils of this animal do not have any remains of the horn.
Now option D mentions that the horn is made up of keratin and does not fossilize. This completes the argument.
Re: The African diary of Joao Infante, a 15th century Portuguese explorer &nbs [#permalink] 21 Nov 2017, 08:47
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