Concept:These words sound similar but have different meanings: dairy (milk products), dreary (dull), diary (personal notebook).Explanation:Sentence 1: "private dairy" is wrong; it should be "diary" for personal memories.Sentence 2: "dreary" correctly describes the long, boring meeting.Sentence 3: "local diary" is wrong; it should be "dairy" for milk products.Only sentence 2 uses the word correctly.Answer:B. 2 only