Question

Which sentence below suggests tiredness?
a. Freddie sat in his chair after a long day at work.
b. Freddie melted into his chair after a long day at work.
c. Freddie bounced into his chair after a long day at work.
d. Freddie hopped into his chair after a long day at work.

Answer 1

B is the best choice. 
I hope this helps! :)

Answer 2

B) Freddie melted into his chair after a long day at work.

Freddie "melted" suggests that he completely lay down on the chair because he was too tired to sit up. The other options sound either neutral or too positive.