This question is based on the chapter “Journey to the End of the Earth” by Tishani Doshi. The chapter describes a student expedition to Antarctica.
Step 1: Identify the character.
Geoff Green was the founder of the organization “Students on Ice,” which aimed to take students on educational expeditions to Antarctica to create awareness about environmental issues.
Step 2: Analyze the options.
(A) An Indian: Geoff Green was not Indian.
(B) A Canadian: This is correct because Geoff Green was a Canadian environmentalist and expedition leader.
(C) A Britisher: He was not from Britain.
(D) None of these: Since option (B) is correct, this option is incorrect.
Step 3: Conclusion.
Geoff Green was a Canadian who organized Antarctic expeditions for students. Hence, the correct answer is (B).
Final Answer:
\[
\boxed{(B) \, \text{A Canadian}}
\]