Pick which sentence is not logical.
Options:
- Sentence A: "Dolphin is a land mammal which is very intelligent and often friendly towards humans."
- Sentence B: "Dolphin is a sea mammal which is very intelligent and often friendly towards humans."
Let me think hard. Detailed solution:
Dolphin swims in the sea; it doesn't have limbs to walk on land.
The answer is Sentence A.