Question

the man who has the red vest on rescued my cat. restrictive nonrestrictive no added clause

Explanation:

A restrictive relative clause (like "who has the red vest on" here) provides essential information to identify the noun ("the man"). It's not set off by commas and is necessary to know which man is meant. A nonrestrictive clause gives extra, non - essential info and is set off by commas. Here, the clause is restrictive as it identifies the specific man who rescued the cat.

Answer:

restrictive