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.
The most important accomplishment in the development of railroads in the United States was the completion of the first transcontinental track. In May 1869, seven years after President Lincoln had signed the Pacific Railway Act, the final spike for the track was hammered into place in Promontory Point, Oregon.
Group of answer choices
Replace the comma after Act with a semicolon.
Replace the comma after 1869 with a semicolon.
No change
1 answer
Replace the comma after Act with a semicolon.