In the question below, two sentences are given, each with four words highlighted in bold and alphabetized. From the options, choose the word from the first sentence that needs to be interchanged with a word from the second sentence, to make both sentences coherent and meaningful.
I. When it was invented in the early 20th century, Muzak represented a technological global    - a new way of broadcasting music using a standard electrical wiring.
II. Muzak's inventor, Brigadier General George Owen Squier, envisioned a world in which music was the soundtrack of everyday life, broadcast from a small box in every home connected to a marvel network.