Answer:
First, it's more expensive than beef, pork, or chicken. That's probably partly because lambs are smaller animals than cattle or pigs (so you get less marketable meat from each of them), and partly because fewer people will buy it (high price and low demand create a feedback loop).
The 19th century figure that is known for opening Japan to US trade is :
Mathew Perry
he was a commodore of United States navy that opened japan US Trade
hope this helps
All of the above because why not
