Canadian Citizenship Practice Test 2025

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What was Dr. Wilder Penfield known for?

Pioneering brain surgery at McGill University
Inventing the first cardiac pacemaker
Creating the Canadarm
Founding Research in Motion (RIM)

The correct answer is: Pioneering brain surgery at McGill University

Dr. Wilder Penfield was a renowned neurosurgeon who is most well-known for his contributions to the field of neurosurgery. As such, incorrect options B, C, and D do not align with his expertise in this field. Option B refers to the invention of the first cardiac pacemaker, a medical device used to regulate heart rhythm, which is not related to neurosurgery. Option C mentions the creation of the Canadarm, a robotic arm used in space missions, which is also not related to neurosurgery. Option D mentions Research in Motion, a Canadian technology company known for creating the Blackberry, which is also not related to neurosurgery. Therefore, option A is the most accurate answer as Dr. Wilder Penfield is most well-known for his work in pioneering brain surgery at McGill University.