Which kinds of punctuation are used to set off non-restrictive clause select the two correct answers

Answer 1

Non-restrictive clauses are typically set off by commas. In some cases, you might also use dashes or parentheses. So, the two correct answers for punctuating non-restrictive clauses would be:

1. Commas
2. Dashes (or parentheses)

However, the most common and standard punctuation for non-restrictive clauses is commas.