Question

how their earns his living

Answer 1

c.A cook earns his living by cooking hotel meals
e.A vegetable seller earn his living by selling vegetables
f. A tailor earns his living by stiching out clothes

hope it's help

Answer 2

Hii friend,
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Here is your answer
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c) A chef earns his living by cooking hotel meals
e) A vegetable man earn his living by selling vegetables 
f) A tailor earns his living by stitching our clothes 
h) A floweriest earns his living by selling flowers
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HOPE THIS HELPS YOU :)