What’s sentence you need to know the answer?
It's risk against health and it's expensive price for it.
Answer: B. In school, my mother encouraged me to join the band.
The modifier in this case is misplaced as it makes it sound like the mother was at school when she gave the advice. Modifiers can be very important to the structure of a sentence as they can significantly change the meaning if misplaced.
All the other examples express the meaning of the sentence clearly.
What are the answer choices