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. My father told me that all the labor and effort one puts in to the professional front is meant to make life easier and therefore any professional success coming at the cost of personal happiness is pointless. i. one puts at the professional front is meant to make life ii. one puts onto the professional front is meant to make life iii. one who puts into the professional front is meant to make life