Answer:
There is no passage so I cannot answer the question please repost the passage and I would love to help you.
Am I reading the question wrong.
The answer is A.
You need to be more specific when asking questions like this. First of all, you should copy the second paragraph of whatever you are reading. After doing that, you will be able to get a suitable answer for your question.
Answer: A) few survived the horrific train ride.
The excerpt does not show that his father and him were safe. Difficulties could have been waiting for them right after leaving the train. Moreover, there is no blame attached to Meir Katz for remaining on the train. He was just a victim of horrific circumstances. There was also no purpose in leaving him behind according to this passage. However, the passage does prove that very few people survived the train ride (in this case, 12/100).
There is a dangling modifier, which is "riding his bike". The sentence should be "The dog was almost hit by my brother riding his bike." The error is "DM".