Which compound gives 1-bromo-1-methylcyclohexane with HBr

The same question, asked 2 times: 10 May 2024 S1, 23 Apr 2025 S1. Every wording below, oldest first.

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Question 1
10 May 2024 S1
70 $Which of the following compounds reacts with HBr to form 1-bromo-1-methylcyclohexane?$
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Question 2
23 Apr 2025 S1
62 $Which of the following compounds forms 1-bromo-1-methylcyclohexane when treated with HBr ?$
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