Which sentence states the central idea of the passage? Many people think that only humans can use language. But scientists
have discovered that dolphins also communicate through a kind of
"talking." Dolphin language, unlike human language, does not use
words. Instead, dolphins use clicks, squeaks, and other sounds to give
each other information. They even seem to use certain sounds to "talk"
about specific dolphins. In this way, dolphins can be said to have
names!

a

explanation:

the correct answer is a. how to make proposal that works.

indeed, the register is quite formal and the tone is especially objective as it avoids the use of the first and second person singular (i, you) and opts instead for the third person plural which is more impersonal and focuses on the data and the argument that is being developed by the author. the formality adds the impression of respectability to the work and the impersonality adds objectivity to it.

“asleep in his bed” is personified.

the narrator is a first person, participant one, who describes in the simple past tense important and difficult events in his earlier life. he also provides temporal markers as the month (january) and the time (12: 30 pm). finally the account of his experience is very detailed, to the extent that a participant narrator would talk the same way about his experiences. a good example of such detail is the mention of the “bovril ration” which historically was a native american food adopted by european explorers in arctic and antarctic regions due to its high level of calories.