Why no "History of Trip B" on "Trip Computer" in Civic EX ?

When I view "Trip Computer", on the touch screen in my 2016 Civic EX, I can select either "Current Drive" or "History of Trip A".
Apparently there is no "History of Trip B" available. Can anyone tell me why?
Apparently there is no "History of Trip B" available. Can anyone tell me why?
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