In this section, two sentences are given and you are required to find the correct sentence which combines both the sentences. Choose the correct response (a), (b), (c ), (d).

Tokyo is too exhausted. She could not breathe.

a) Tokyo is so exhausted that she could barely breathe.
b) Tokyo is too exhausted and cannot breathe.
c) Tokyo will not breathe and she is very tired.
d) Tokyo is so tired that she could not be breathing.