Which of the following phrases (i), (ii), and (iii) given below each sentence should replace the phrase printed in bold letters to make the sentence grammatically correct? Choose the best option among the five given alternatives that reflect the correct use of phrase in the context of the grammatically correct sentence. If the sentence is correct as it is, mark (E) i.e., "No correction required" as the answer. The vilest of the thing that can be done by a person is to ill-treat dogs and other defenseless animals. i. vile things that can be done by persons. ii. vilest things that can be done by a person. iii. vilest thing that can be done by a person.