A museum tour guide points to a specific artifact while saying "This one is particularly significant." Which mechanism is most amplified by this indexical reference?

💡 Explanation

The tour guide's gesture amplifies referential grounding because the pointing action directs attention to a specific artifact, creating a shared context for understanding. Therefore, comprehension is aided by linking the word 'this' to the visual target, rather than depending on phonemic restoration or syntactic parsing.

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