Given the task definition and input, reply with output. 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.

Question: Who did John Vincent Barry compete against in the election of 1943? Passage:In 1939, Barry joined the Australian Labor Party and ran, unsuccessfully, for the federal seat of Balaclava in the electoral year of 1943. However, he later became a member of the Victorian central executive in 194547, as well as becoming a member of the Overseas Telecommunications Commission in 1946-47. He was also elected chairman of the ethics committee of the Australian Journalists' Association, after becoming a member in 1943. Appointed as a King's Counsel (now known as the Senior Counsel) in 1942, Barry assisted Sir Charles Lowe in the inquiry into the Darwin air raids. Representing the politician, Eddie Ward in a royal commission into the Brisbane Line, Barry was appointed commissioner to investigate the suspension of government in Papua New Guinea.
Links: a. Overseas Telecommunications Commission b. Politics of Australia c. Brisbane Line d. Politics of Australia
b