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Problem 4 - Entrance Test

The following passage is a excerpt from a nonfiction book. Read the passage and then choose the best answer to the question that follows. "The concept of dark matter has been a topic of debate among scientists for decades. Although it has yet to be directly observed, its presence can be inferred by its gravitational effects on visible matter. Many scientists believe that dark matter makes up a large portion of the universe's mass-energy budget." The author's tone can best be described as

Correct: A

The author presents information about dark matter in a neutral and impartial manner, without expressing a personal opinion or emotion. The text does not contain any language that suggests the author is trying to persuade or convince the reader of a particular point of view. Therefore, choice A is the correct answer, as the author's tone is objective and neutral. Choice B is incorrect, as the author does not express any subjective or biased views. Choice C is incorrect, as the author does not convey a critical or disapproving tone. Choice D is incorrect, as the author does not attempt to persuade or argue a point.