Directions: The sentence given below has been divided into four parts, one of which may contain an error. The sentence doesn't contain more than one error. Select the underlined part that must be changed to make the sentence correct. If the sentence is correct as given, select (5) 'No error' as your answer.

The world is full of (1) officials, who, if they cannot plan some kind of project, (2) are capable of (3) nothing but yawning; the proprietors, who, in order to make money, cannot (4) rest from their labours for a minute. (5) No error