Which methyl halide (fluoro-, chloro-, bromo-, iodomethane) has the lowest boiling point

The same question, asked 2 times: 16 May 2023 S1, 13 May 2024 S2. Every wording below, oldest first.

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Question 1
16 May 2023 S1
87 $Which among the following has lowest boiling point?$
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Question 2
13 May 2024 S2
77 $Which of the following compounds has lowest boiling point?$
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