Single/multi-select question: Does the sentence "Feynman traveled to Brazil, where he gave courses at the BCPF (Brazilian Center for Physics Research) and near the end of his life schemed to visit the Russian land of Tuva, a dream that, because of Cold War bureaucratic problems, never became reality." provide a valid answer to the question "Where did Feynman work at in Brazil?"
Available choices:
A). yes
B). no
A).