Final answer:
Rome, the city from which Pam is taking a train, is located in Italy. Additionally, Russia was the country that faced barriers to early industrialization due to a lack of free laborers, while Paris was the city that Baron Haussmann rebuilt in the nineteenth century.
Step-by-step explanation:
The city of Rome is located in Italy, which makes the correct answer to the question, 'Pam is taking a train from the town of Rome. In which country is this town located?' (a) Italy. This correlates with the well-established historical and current geographical knowledge that Rome is the capital city of Italy.
Addressing the other parts of the multi-faceted question for educational purposes, the country that was initially prevented from industrializing because of a lack of free laborers was (d) Russia. Furthermore, the city rebuilt by Baron Haussmann in the second half of the nineteenth century was (d) Paris, under the direction of Napoleon III, marked by the city's broad avenues and beautiful buildings that we see today.