In each question below, a sentence is given with a word printed in bold type, which may be correct or erroneous. Each sentence is followed by four words. Find out which is the correct word that should replace the error in bold, if there is any, and which makes the sentence grammatically meaningful and correct. If the sentence is correct as it is and ‘No improvement required’, mark option 5 ‘No improvement required’ as the answer.
Researchers at the Horticulture College and Research Institute, Periyakulam, say that within a few years they would introduce a variety that would see mangoes being cumulated even in saline and sodic soil.