When comparing the man's legs to rubber in context, it sounds like he is unable to walk. Describing his legs as rubber would indicate they bent and bowed under his weight on them. He's probably either injured or lame.
A. Yes, you must turn off the radio. / No, you need not turn off the radio.
B. Yes, he will come to the prize giving. / No, he won’t come to the prize giving.
C. Yes, they want a lift from us. / No, they don’t want a lift from us.
D. Yes, I can write a report for you. / No, I can’t write a report for you.
E. Yes, you should visit him in the hospital. / No, you shouldn’t visit him in the hospital.
Answer: D: while the crane learns not to help others, annika realizes that sometimes a person needs help
Explanation: