Given a passage with a question and an answer to that question, classify if the answer actually answers the question into 'yes' or 'no'. Output 'yes' if the answer answers the question and output 'no' if the answer does not answer the question.
Q: Question: Do use and Outcomes of Intravenous Thrombolysis for Acute Ischemic Stroke in Patients 90 Years of Age?
Answer: The use of intravenous tPA among those aged 90 years is lower than in younger patients. When fibrinolytic therapy is used, the risk of symptomatic hemorrhage is not higher than in 66- to 89-year olds; however, mortality is higher and functional outcomes are lower.
A:
yes