which sentence contains a nonrestrictive clause? be sure to watch that movie i gave you. the man who drives…

which sentence contains a nonrestrictive clause? be sure to watch that movie i gave you. the man who drives our bus is ill. take a left after that house with the yellow fence. the old apron, which belonged to mama, is torn.
Answer
Brief Explanations:
A non - restrictive clause is set off by commas and provides non - essential information. In "The old apron, which belonged to Mama, is torn", the clause "which belonged to Mama" is set off by commas and gives extra, non - essential information about the apron. The other sentences do not have such non - restrictive clauses.
Answer:
The old apron, which belonged to Mama, is torn.