求翻译：在80年代，美国期权合约已经扩展到了外汇期权、股票指数期权、期货期权等领域。 费城期权交易所主要从事外汇期权交易，芝加哥期权交易所交易S&P100和500的股票 指数期权，美国股票交易所交易主要市场股票指数(Major Market Stock Index)期权，纽约 股票交易所交易NYSE指数期权。现在绝大部分提供期货合约交易的交易所也同时提供 期货期权交易服务。芝加哥交易所提供谷物期货期权交易，芝加哥商品交易所提供家畜 期货期权交易服务。期权交易所现在已经遍布全世界。是什么意思？

In the 1980s, the American option contracts has been extended to the field of foreign exchange options, stock index options, futures and options. Philadelphia Options Exchange in the foreign exchange options trading, the Chicago Board Options Exchange trading s & p100, and 500 stock index option

In the 80s, the United States options contracts have been extended to the foreign exchange options, stock index options, options on futures, and other fields. Philadelphia exchange primarily engaged in foreign currency option trading, Chicago Board Options Exchange Transactions P S &100 and 500

In the 80 's, United States option contracts have been extended to the foreign exchange options and stock index options, futures and