Which one of the following, if true, would best complement the passage's findings?
Explanation:
Option (a): If this were true there would have been no point of doing the experiment.
Option (b): Does not add anything significant to the findings of the experiment
Option (c): According to the passage, species that exhibit self-control are usually social. Cuttlefish are not. But if it were true that cuttlefish exhibit sociability, you could conclude that like most other social creatures, cuttlefish, too, exhibit self-control. So if option B were true, the findings of the passage would be in line with what is generally observed. So, that way, it would complement the findings.
Option (d): If cuttlefish could not distinguish between geometric shapes, there was no reason for them to wait for the shrimp. The whole premise of the experiment is negated.
Hence, option (c).
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