That is referring to the op amp internal design which is dc coupled from its input to its output.
How the input or output are coupled externally (AC or DC) is up to the designer.
Thanks for wasting 1.3Mbytes for a couple of 100Bytes of text.
For sure it's DC coupled. If AC coupled I'd expect a series capacitor ... which usually does not exist .
What did you expect? (This is a serious question)