The following sentence may need a semicolon to separate independent clauses. Select the answer option that will make the sentence correct. If the original sentence is correct, select No change.
In 1878, Thomas Alva Edison invented the carbon microphone, it was used in every telephone until the 1980s.
Group of answer choices
No change
Replace the comma after microphone with a semicolon.
Replace the comma after 1878 with a semicolon.
1 answer
Replace the comma after microphone with a semicolon.