Final answer:
The sentence that best supports Cheval's passion for his work is: 'When he retired from the postal service at age 60, his hobby became a vocation to which he would devote his life.'
Step-by-step explanation:
The sentence that best supports the idea that Cheval was passionate about his work is: 'When he retired from the postal service at age 60, his hobby became a vocation to which he would devote his life.'
This sentence indicates that Cheval chose to pursue his hobby as a vocation after retiring from his job, demonstrating his passion and dedication.
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