I think that calculation tools would be the answer. <span>Excel contains calculation tools not available in access. Excel enables you to create formulas for ease in operation for future purposes. Almost all operations can be found in excel which cannot be found in Access.</span>
Answer:
Each time an ad is shown
Explanation:
The term view or add view can both be used to refer to impression in online advertising. It is basically a record of the number of times a web visitor sees an advertisment that is displayed on the webpage. To determine this number for a particular advertisement, the number of times the page containing the add is visited and loaded is counted as the advertisement is always going to be shown at each loading of the page.
I'd say it's A because source file originally means "a file that contains original data," which I believe A has the closest meaning to it.