Which one of these is correct PI of a XML document?

a) <?xml version = "1.0"?>

b) <?xml version = "1.0">

c) version = "1.0">

d)

When creating a budget, log fixed expenses before income. after income. after savings. at the top.

What is estimated time of arrival (eta)? a device that measures the acceleration (the rate of change of velocity) of an item and is used to track truck speeds or taxi cab speeds a gps technology adventure game that posts the longitude and latitude location for an item on the internet for users to find a north/south measurement of position the time of day of an expected arrival at a certain destination and is typically used for navigation applications

How should you specify box sizes on a web page if you want the boxes to vary according to the font size of the text they contain? a. in pixels b. in inches c. as percentages d. in em units