On the Toolbar, the $$Main Window$$ icon resembles a raising and falling line graph $($green$).$ Clicking on this icon performs what function?

Group of answer choices

Opens data files that were previously recorded and saved.

Opens a new data file using the current settings for the program.

Saves the current data in a file.

Returns to where recorded data is first displayed and on$-$line computer functions can be performed. Layout displayed at start$-$up