Directions (Qs. 21 to 35) : Read each sentence to find out whether there is any grammatical error or idiomatic error in it. The error, if any, will be in one part of the Sentence. The number of that part is the answer. If there is 'No error', the answer is (5). (Ignore errors of punctuation, if any). : In a first of its kind study, (1) / a team of scientists have tried to (2) / "grow" new stem cells in (3) / the ear that get damage with age. (4) /No error (5)

• A. 1
• B. 2
• C. 3
• D. 4
• E. 5