Institution: AGRANI BANK LTD Exam: Agrani bank Ltd - Officer - 12.02.2010
Topic: International General Knowledge, Subject: International GK (আন্তজার্তিক বিষয়াবলী)

Best Answer Explained in Below-:

The correct answer to the question regarding the "save" button on a computer keyboard is **C) F12.** In many software applications, particularly in Microsoft Office programs like Word and Excel, the F12 key is commonly associated with the "Save As" function. This allows users to save a file with a new name or in a different location.

In contrast, the other function keys listed have different primary uses. For example, **F5** is typically associated with refreshing a page in web browsers or rerunning a script in some programming environments. **F8** is often used to enter various functions in different software, such as booting in safe mode on Windows. Similarly, **F6** may have different functionalities depending on the application, like navigating between address and search bars in browsers.

While some applications allow for customizable shortcuts, the F12 key is a standardized reference in many widely-used software programs for saving tasks, making it the best choice in this context. Thus, for users familiar with common keyboard shortcuts, F12 stands out as the appropriate selection for initiating save operations.