In this task, you're given a question, a context passage, and four options which are terms from the passage. After reading a passage, you will get a brief understanding of the terms. Your job is to determine by searching and reading further information of which term you can answer the question. Indicate your choice as 'a', 'b', 'c', or 'd'. If you think more than one option is plausible, choose the more probable option to help you answer the question.
Q: Question: How much did the Royal Free Hospital charge patients the year Beck started working there? Passage:Diana Beck was born in 1900 in Hoole, Chester, to James Beck, a tailor, and Margaret Helena Kinloch. She attended The Queen's School before studying medicine at the London School of Medicine for Women, where she won two prizes and a scholarship. After graduating in 1925, she worked at the Royal Free Hospital as a house surgeon and then a surgical registrar throughout the 1930s. She chose to specialise in neurosurgery and trained under Hugh Cairns at the Radcliffe Infirmary in Oxford, where she also acted as a general surgeon providing treatment to injured soldiers during the war. In 1939, she was awarded the William Gibson Research Scholarship for Medical Women by the Royal Society of Medicine, and used the grant to undertake research in Oxford with Dorothy Stuart Russell. Using animal experiments, they investigated the causes of idiopathic intracranial hypertension and experimented with various graft materials for cranioplasty.
Links: a. Royal Free Hospital b. Idiopathic intracranial hypertension c. Hugh Cairns (surgeon) d. Hugh Cairns (surgeon)
A:
a