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Who was responsible for the invention of the Canadarm?

  1. SPAR Aerospace / National Research Council

  2. Mike Lazaridis and Jim Balsillie

  3. Dr. John A. Hopps

  4. Dr. Wilder Penfield

The correct answer is: SPAR Aerospace / National Research Council

The Canadarm was developed by the engineering firm SPAR Aerospace in collaboration with the National Research Council of Canada. While all of the other options may have made significant contributions to Canada's advancements in science and technology, they were not directly involved in the creation of the Canadarm. Mike Lazaridis and Jim Balsillie are known for co-founding the telecommunications company Blackberry, but they did not have any involvement in the invention of the Canadarm. Dr. John A. Hopps is credited with the development of the pacemaker, and Dr. Wilder Penfield is known for his pioneering work in neurology, but again, neither of them were involved in the creation of the Canadarm. Thus, the correct answer is A.