The Transcontinental Railroad was completed in 1869 when the Central
Pacific Railroad and the Union Pacific Railroad met at Promontory Point,
Utah. The correct option among all the options given in the question is
option "A".
The first transcontinental Railroad was complete on the 10th
of May 1869. This railroad was built by three different private companies and
they were Western Pacific Railroad Company, Central Pacific Railroad Company
and Union Pacific Railroad Company. It was a combined job that was started in
the year 1863.
