A header can be printed on the top margin.
What is a header?
A part of a text in the line that is generally used to describe the title or the topic of the text contained below such line is known as a header. It is represented in the top margin, as a title can be written on the bottom side.
Hence, option A holds true regarding a header.
Learn more about a header here:
https://brainly.com/question/15163026
#SPJ2
