I'll give you a question, please answer with step-by-step reasoning process.
One of the following sentences is nonsensical. Which one is it?\nOptions:\n- Sentence A: "We need save his life with two pints of poison."\n- Sentence B: "We need save his life with two pints of blood."\n

Sentence A
Two pints of poison would most likely kill a person.

.

The answer is Sentence A