प्र:

Parts of the following sentence have been given as options. One of them may contain an error. Select the part that contains the error from the given options. If you don’t find any error, mark ‘No error’ as your answer.
Aid workers have delivered vast quantities of food on the refugee camps.

• 1
  No error
• 2
  vast quantities of food
• 3
  on the refugee camps
• 4
  Aid workers have delivered