Free SAT Practice Question

Question 1 of 1
ID: DSAT-RW-73
Section: Digital SAT Reading & Writing (RW) - Broadly Reading - Information and Ideas
Topic: Inferences
Difficulty level: Medium

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In many flowering plants, pollinators associate deeply colored petals with nectar rewards. Because anthocyanin pigments that create such coloration are costly to produce and are often correlated with nectar output, vivid petals typically operate as an honest signal of reward availability. However, botanist Liyun Zhao and colleagues report that several food-deceptive orchids use microscopic ridges and thin-film structures on their petals to intensify reflected light, creating the appearance of richer pigmentation while producing little or no nectar. These findings suggest that __________

Which choice most logically completes the text?

Apollinators generally prefer pale flowers that offer larger nectar volumes.
Bpetal microstructures are less effective than pigments at attracting pollinators to flowers.
Cin some orchids, floral appearance may function as a dishonest signal of nectar availability.
Dscientists have yet to determine whether anthocyanins provide any physiological benefits to plants.
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