Consider the meaning of “as” in “As the letters continued to...

Consider the meaning of “as” in “As the letters continued to pour in, Wolf experienced a growing realization: reading had changed profoundly.” (lines 19 and 20) and in the segments below:

I. “we don’t read the same way online as we do on paper” (lines 28 and 29)

II. “when we scroll, we tend to read faster but less deeply, as a way of coping with an overload of information” (lines 38-40)

III. “As children move more toward an immersion in digital media, we have to figure out ways to read deeply in this new environment.” (lines 49-51)

The segment(s) in which the meaning of “as” is closest to the one in lines 19 and 20 is/are only