Selecting overlapping markups in Adobe Acrobat Pro DC

Some solutions below. These are best accomplished when the comments pane is visible:

• Since the data is already highlighted and has at least one text callout, enter your remarks in the highlight's commenting box using the comments pane and delete the text callout(s) since they are now superfluous.  Or vice versa, select the text callout and delete the highlighting.  Either approach reduces screen clutter and file bloat.  Superfluous comments complicate Acrobat functions (searching, filtering, etc.), adds to the file's size, and extends file opening/closing times.
• Alternatively, select both the highlighting and text callout (using Shift-Click), right click, and Group the comments. Further selection of the group allows remarks to be added and available whichever either comment is selected.

One correction to my previous post: if there are overlapping markups, the one that was added most recently is the one that gets selected first. (I stated earlier that text highlight gets selected first when it overlaps text callout).