Answer:
All the options are actually correct, but the main minerals that would have likely caused May's osteoporosis would be Calcium, Phosphorus and Magnesium.
Explanation:
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Lighting :- rs 10000
Rent :- rs 20000
Depreciation :- rs 5000
Total labour hours 7000 hour
1, 4, 3, 6, 5, 2
I think it has had a positive effect.
Hope this helps.