Teacher: Pick which sentence is not logical.
Options:
- Sentence A: "Her grandfather is her grandson"
- Sentence B: "Her grandfather is her mother's father"

Student: A grandfather can't also be the grandson of the same person.
The answer is Sentence A.

question in book:
Which of these sentences doesn't make sense?
Options:
- Sentence A: "They had walked two miles."
- Sentence B: "They had walked two meters."

standard solution:
Walking two meters is a very short distance.
The answer is Sentence B.

[TEACHER] Of the following two sentences, which one is against common sense?
Options:
- Sentence A: "flash memory is a digital recording medium"
- Sentence B: "mouse is a digital recording medium"

[Student] A computer mouse is not a tool for digital recording.
The answer is Sentence B.

Teacher: Which of the following two sentences does not make sense?
Options:
- Sentence A: "water is for putting in your car engine"
- Sentence B: "oil is for putting in your car engine"

Student: Water should not be put inside a car engine.
The answer is Sentence A.

question in book:
Which of the following sentences is nonsensical?
Options:
- Sentence A: "If you fall, you will break a bone"
- Sentence B: "If you fall, you may break a bone"

standard solution:
Some falls are not hard enough to break bones.
The answer is Sentence A.

Teacher: One of the following sentences is nonsensical. Which one is it?
Options:
- Sentence A: "He chopped the tree with his axe."
- Sentence B: "He chopped the tree with his finger."

Student:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
The finger is not sharp and hard enough to cut the tree.
The answer is Sentence B.