Respuesta :
Options A and C present the correct use of the comma in a restrictive and non-restrictive clause.
We can arrive at this answer because:
- Both restrictive and non-restrictive clauses must be written between two commas.
- The restrictive clause is the one that adds information to the word previously said to it.
- An example of a restrictive clause is shown in option C, where the clause "that were made less than" adds information about the word "returns."
- This sentence is enclosed in two commas, as must be done with restrictive clauses.
- The non-restrictive clause expresses information that can be removed from the sentence without modifying its meaning.
- Option A shows this type of clause in the line "after a trial separation." This clause was also correctly written between two commas.
With that, we can consider that options A and C are correct.
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