<span>adopting the gold standard opened the country to foreign investment</span>
Peers, advice, physical exercise, assistive technology
The practice which is not sound in conducting individuales is C) conducting in-person interviews and telephone interviews in the same poll.
In-person interviews deliver the most representative results. Telephone surveys provide a good alternative but they need using a larger sample.
I think the navy was instrumental in the Roman conquest of the Mediterranean basin. The navy was also a key in defending against barbarian invasions.