In the context of the third paragraph, the function of the phrase “on ... ...

In the context of the third paragraph, the function of the phrase “on the verge of a filmless, digital revolution” (line 17) is to .
(A)  highlight the circumstances that make the renewed interest in early photographic processes ironic .
(B) ...
(C) ...
(D) ...
(E) ...

*This question is included in June 2013 LSAT (PT 69): Reading Comprehension