D. It tripled, mostly due to people moving in from other places
Explanation: in 1850 the population of Texas was 212,592. In 1860 the population shot up to 604,215
The trans-continental railroad was completed around this time, so not only did train travel change, but was innovated so that a train could take you anywhere across the US.
Answer:
When the reporter describes how fast the car that won the race was traveling, he is describing the <u>speed</u> of that car.
The car's speed is how fast the car was going.
