Which of the following statements about wikis are TRUE? Choose the correct answer from the options given below:

1.Wiki pages can be locked by moderators to prevent vandalism

2.Every change made to a wiki page is logged and can be viewed in a history list

3.A wiki is designed to allow people to collaborate easily

A1 and 2

B2 and 3

C1 and 3

D1, 2 and 3 ✓ Correct

Correct answer: (D) 1, 2 and 3

Explanation

All three statements are true, as a wiki can be locked by moderators, logs every change, and is built for easy collaboration.

Statement 1 is true because moderators can lock pages to stop vandalism of the content.

Statement 2 is true because every edit is recorded in a history list that can be viewed and rolled back.

Statement 3 is true because a wiki is designed so many people can write and improve pages together.

This shared editing model is what powers large sites such as Wikipedia.

The saved history also lets editors compare versions and restore an earlier one if needed.

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