Computer Science

The Excel INDEX function returns the value at a specified position in a range or array, making option A correct. The other options are not provided and thus not relevant.

Many email services block executable (.exe) files as attachments for security reasons, as they can contain malicious software. Other common file types like .doc, .jpg, and .pdf are usually allowed.

Outlook Express is an email client program specifically designed for sending, receiving, and managing email messages.

In MS Word, pressing Ctrl + ] increases the font size of the selected text by one point. This is a standard keyboard shortcut for font size adjustment.

ALU stands for Arithmetic Logic Unit, which is a digital circuit used to perform arithmetic and logic operations in computers.

SMTP (Simple Mail Transfer Protocol) is the standard protocol used to transfer email messages between servers and provide email facility among different hosts.

Among the options given, a terabyte (TB) is the largest unit of memory. It is larger than a gigabyte (GB), megabyte (MB), and kilobyte (KB).

In MS Word, pressing 'Ctrl + Down Arrow' moves the cursor down to the beginning of the next paragraph. It does not move by lines, delete, or copy text.

ASCII stands for 'American Standard Code for Information Interchange.' It is a character encoding standard used for representing text in computers and electronic devices.

Pressing the Escape key is the standard way to stop or exit a slide show in most presentation software, such as Microsoft PowerPoint.