|Question 11Verbal

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Researchers have identified over eighty gestures made by nonhuman great apes, such as clapping and rocking from side to side, that appear to convey information and that seem to be biologically inherited. Kirsty E. Graham and Catherine Hobaiter hypothesized that humans may be able to interpret great ape gestures, either through an evolutionary inheritance or as part of more general human cognitive abilities. The researchers tested this hypothesis by enlisting participants in an online game in which they had to correctly identify the meanings of ape gestures seen in videos. Though participants achieved some success, it is unclear whether they sometimes did so by making use of additional context provided by the images or sounds in the video recordings.
Which statement, if true, would most strongly support the underlined claim?
Participants correctly identified gestures at the same rate for videos in which the apes made sounds in addition to gestures and videos in which the apes were silent
A
When apes made mouth-touching gestures, which participants tended to correctly interpret as requests for food, the food was visible in the videos
B
Participants were more readily able to identify an ape gesture when it meant "climb on my back" than when it meant "let's be friendly."
C
Participants correctly interpreted ape gestures more than 50 percent of the time, whereas they would have only identified gestures correctly 25 percent of the time if they had been guessing
D