“Four words are given, out of which three are alike in some way and one is different. Select the word that is different.”

Scurvy, goiter, and anemia are nutritional deficiency diseases (caused by lack of vitamins or minerals).

• Scurvy → deficiency of Vitamin C
• Goiter → deficiency of iodine
• Anemia → deficiency of iron

But diarrhea (loose motion) is an infectious/digestive disorder, not a deficiency disease.

So, the odd one out is Diarrhea (Loose motion).