adding merge fields is a way to personalize a document with information from the data source. The merge fields come from the column headings in the data source.
:)
A bit (short for binary digit) is the smallest unit of data in a computer. A bit has a single binary value, either 0 or 1. ... Half a byte (four bits) is called a nibble. In some systems, the term octet is used for an eight-bit unit instead of byte.
Utility software can help you to designed to help analyze,configure , optimize or maintain a computer.
CSS in a separate file shared by many web pages provides a mechanism for a consistent layout, so my vote would be answer b.
However, with PHP driven templates you could achieve something similar. Also, JavaScript is commonly used for layout purposes (e.g., jQueryUI). But CSS is all about layout...