|Question 2Verbal

Source Texts

Text
As discussed by scholar Anna Mladentseva, many artworks produced in the mid-1990s to the early 2000s exclusively for exhibition on the internet, such as Sinae Kim's Genesis (2001), have become inaccessible because viewing them requires the use of        software (most notably Adobe Flash, discontinued in 2021).
Which choice completes the text with the most logical and precise word or phrase?
extraneous
A
arcane
B
defunct
C
ubiquitous
D