A. under paraffin oil
B. under ultraviolet light
C. in a cool, dark cupboard
D. in a box lined with lead
Correct Answer: Option D
D. in a box lined with lead
A. under paraffin oil
B. under ultraviolet light
C. in a cool, dark cupboard
D. in a box lined with lead
Correct Answer: Option D
D. in a box lined with lead
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