Question

1. At this festival, you can enjoy traditional dances, foods, and other activities that show the cultures of migrant workers.
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What is the antecedent of the that clause?

1. other activities
2. traditional dances, foods, and other activities

Answer 1

The antecedent is "activities" but not "other" which is an adjective here.

In addition, you should use "food" instead of "foods" -- https://www.quora.com/What-is-a-collective-noun