Read the Paragraph Below and Answer the Questions That Follow

Read the paragraph below and answer the questions that follow.
(1) An unlikely friendship formed in 2005 at the Mutsugoro Okoku Zoo near Tokyo, Japan. (2) In October of that year, a snake named Aochan refused to eat the frozen mice zookeepers gave him for his dinner. (3) Then, the zookeepers presented a live hamster named Gohan, which means "meal." (4) Instead of eating the hamster, however, Aochan made friends with it. (5) Three months later, when newspapers began to print the story, predator and prey were still sharing a box. (6) Gohan was even taking naps on top of the snake, who eventually developed a taste for frozen rodents. (7) Even then, Aochan showed no sign of wanting to gobble up his new companion.
Which of the following sentences does NOT contain a transitional expression that indicates time?

A) Sentence 2
B) Sentence 3
C) Sentence 4
D) Sentence 5