Final answer:
The best definition for 'raptured' is 'captivated,' as it implies being deeply absorbed in a positive way, which aligns with the usual connotation of the word. Though context is key, 'captivated' fits best from the given options, making it the correct choice.B is the correct answer.
Step-by-step explanation:
The best definition for raptured in line 10 is likely captivated, which means deeply absorbed or engrossed in something, typically in a positive or pleasurable way. Option A (bewildered) implies confusion, Option C (motionless) refers to the lack of movement, and Option D (pensive) means deep or serious thought.
Considering that 'raptured' usually denotes a sense of joy or pleasure due to being engrossed in an experience, 'captivated' is most fitting.
It is important to look at line 10 within the context of the passage to determine how 'raptured' is used, but without additional context, 'captivated' is the most appropriate synonym among the options provided. Therefore, the mentioned correct option in the final answer is B) captivated.