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'.
No sooner did the sun rise (1) / when we resumed the journey (2) / after having a hasty breakfast. (3) / No Error (4)
1). 1
2). 2
3). 3
4). 4