Question

read this sentence. all cars that are not registered will be towed to the nearest impound lot. identify the relative clause, whether it is essential to the meaning of the sentence, and if it requires commas. the clause is “to the nearest impound lot.” it is non - essential. it does require a comma. the clause is “that are not registered.” it is non - essential. it does require a comma. the clause is “that are not registered.” it is essential. it does not require a comma. the clause is “to the nearest impound lot.” it is essential. it does not require a comma.

Explanation:

The relative clause "that are not registered" is essential as it defines which cars will be towed. Essential relative clauses do not require commas. The phrase "to the nearest impound lot" is not a relative clause.

Answer:

The clause is "that are not registered."
It is essential.
It does not require a comma.