Answer:
b. Social bookmarking
Explanation:
Social bookmarking -
It refers to the method to search , organise , store and manage the bookmarks on the web pages , is referred to as social bookmarking .
The user has the option of saving any web page , as bookmark , so that the user can open afterwards when required .
The method to arrange the book cards as per the needs of the user is known as social bookmarking .
Hence , from the given scenario of the question ,
The correct answer is social bookmarking .