Directions: Select the phrase from the options below that should replace the underlined phrase in the sentence to make it grammatically and contextually correct. If the sentence is already correct, select 'No correction required' as your answer.
The United Nations' cultural agency says is it conducted a prelim survey of damage to most of the heritage sites of India.
1
it is conducting a preliminary survey
2
they were conducted a preliminary survey
3
it is conducted a preliminary survey
4
it has been conducted an initial survey
5
No correction required