Directions: (1-5) 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).
1. a)The Government has asked individuals /b) with income of over Rs. 10 lakhs to/c) Electronic file tax returns for the year 2011-12,/d) something which was optional till last year. /e) No error