Answer:
Was a prominent personality in the primary promotion, establishment, and purpose the construction of the First Transcontinental Railroad, is the right answer.
Step-by-step explanation:
Theodore Judah was a prominent personality in the primary promotion, establishment, and purposed the construction of the First Transcontinental Railroad. He was the one who contributed to designing the layout for the Transcontinental railroad as well as accumulating money and requesting the government for support.