In this task, you will be presented with a question and you have to answer the question based on your knowledge. Your answers should be as short as possible.

[Q]: What is the tradition of the instrument that commonly has four courses of doubled metal strings tuned in unison ?
[A]: Europe , has spread worldwide

[Q]: Why did people decline to choose the bronze medalist in women 's 1.5 km speed skating at the Olympic Games of 1968 for the Olympic Games of 1964 ?
[A]: 'old age '

[Q]: What new destination did the Marin County rail system reach in December , 2019 ?
[A]:
Larkspur