I believe it’s the first answer
The leader who was in the USA was Jimmy carter. in Britain the prime minister was James Callaghan. However this is because the detente collapsed in 1979 after soviet invasion of Afghanistan.
As per the question however, in the 1980's the USA leader was Reagan and great Britain was Thatcher Margaret.
there has been a huge decline of teen pregnancy. to avoid pregnancy people would consider abortion but birth control is a safer way to avoid the fetus from being developed yet. and safer for the mother
The opening of two Japanese ports to foreign trade and <span>the creation of a US consulate in Japan are the two direct results</span>
The Constitution of the United States of America.
Hope I helped!!