Which of the following sentences is nonsensical?
Options:
- Sentence A: "dog is taking pictures."
- Sentence B: "Sam's taking pictures."

Hmmm, let me think. I want to lay out the solution in details.

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 dog could be picking up the pictures with his or her mouth, actually clicking the camera and focusing would be impossible. The answer is Sentence A.