GMAT Sentence Correction (SC) | Re: Traveling the back roads of Hungary, in 1905 Bla Bartk and

Traveling the back roads of Hungary, in 1905 Béla Bartók and Zoltán Kodály began their pioneering work in ethnomusicology, and they were armed only with an Edison phonograph and insatiable curiosity.
(A) Traveling the back roads of Hungary, in 1905 Bela Bartok and Zoltan Kodaly began their pioneering work in ethnomusicology, and they were armed only
(B) In 1905, Bela Bartok and Zoltan Kodaly, traveling the back roads of Hungary, began their pioneering work in ethnomusicology, and they were