Blue book vocab question

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1

<p>Hello everyone,
I was practicing in the blue book and cannot figure out why the answer of the following question is B (i chose A)</p>

<p>Lewis Latimer’s inexpensive method of producing carbon filaments… the nascent electric industry by making electric lamps commercially…</p>

<p>A- cheapened… affordable
B-transformed… viable
C-revolutionized… prohibitive
D-provoked…improbable
E-stimulated… inaccessible</p>

<p>Any explanation please ?</p>

2

<p>I think it’s because the method didn’t cheapen the industry because that would mean the industry itself has less value, but it did *transform the industry so now the lamps are more *viable or practical</p>

3

<p>@Strive4success‌ i see now, thanks a lot!</p>