In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. Aviation is important, both as an industry in its own right and as a facilitator for the (1)/ success and competitiveness of other industries. The success of the aviation industry (2)/ is also integral to national competition, economic developing and social progress. (3)/ No error (4) Correct Answer 3 The error lies in part 3 of the sentence as the word 'developing' is incorrect here and should be replaced with the noun 'development'. It should read as:'is also integral to national competition, economic development and social progress.'development is a noun.