Goitre is caused by deficiency of and is characterised by .
A
iron
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B
calcium
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C
iodine
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D
swollen neck
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E
tooth decay
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Solution
The correct option is D swollen neck The most common sign of a goitre is a lump in the neck. This happens when there is a deficiency of iodine in our body which leads to malfunctioning of thyroid gland.