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. If a sentence is free from error, select 'No Error'.
Father was upset (1)/when he found that (2)/you are not there.(3)/No Error (4)
Neil O'Brien (10 May 1934 –24 June 2016) was a quiz master who was often credited for conducting the first formal well-organised quiz in Calcutta, India.