Data are in columns not rows. Selecting the Series tab gives this view. It would be useful for more complicated scenarios. Chart Wizard - Step 3 of 4 Chart options. Tabs can alter the way your chart appears.
Title allows for title and axes labels.
Axes has to do with the style of axes. Gridlines adds of deletes gridlines from chart. Legend controls placement of legend. Data labels alters appearance of symbols on chart. The Titles tab may be the most important of these.