Looking at option B, putting dashes around “of practical approaches” does not make sense because that phrase then becomes what is called an appositive (can be ,…, or -…- or even (…)), which is a small part of a sentence that adds detail to a noun, and most importantly, can be removed without changing the sentence. If we remove “of practical approaches” the phrase “the usefulness like the one adapted by IADT…” does not make sense, so B is wrong.
Choice C does almost the same thing, it just creates a larger appositive. C would make sense if there was a comma after “IADT”, but there isn’t, so C is wrong.
For choice D, colons are used to introduce a list, emphasize a part of a sentence, or clarify something. In this scenario, the colon doesn’t do any of that, so D is wrong.
A- No change is the correct answer because it is already grammatically correct.