The one word for the given sentence is 'Paucity'. Key Points Let's have a look at the meaning and example of the marked option: Paucity- "The presence of something in only small or insufficient quantities or amounts." (केवल छोटी या अपर्याप्त मात्रा या मात्रा में किसी चीज की उपस्थिति।) E.g: There is a paucity of information on the ingredients of many cosmetics. Let's have a look at the meaning of the other given options: Opulence- "Great wealth or luxuriousness." (महान धन या विलासिता।) Sumptuous- "Splendid and expensive-looking; lavish." (शानदार और महंगी दिखने वाली) Occasional- "Occurring, appearing, or done infrequently and irregularly." (घटित, प्रकट होना, या बार-बार और अनियमित रूप से किया जाना) Hence, we find that Paucity is the correct one-word substitute for the given meanings. Therefore, the correct answer is Option 2).