The story of Chile’s electrification is perhaps most readily understood by studying developments in several key years: 1916, when engineer Arturo Salazar attended the Pan-American Scientific Conference; 1936, when the study entitled “Politica eléctrica chilena” was [Blank] 1943, when the national electrical plan was finalized.
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Verbal·Standard English Conventions·Boundaries
mediumWhich choice completes the text so that it conforms to the conventions of Standard English?
A
released; and
B
released and
C
released. And
D
released, and