Question #6403673Single Choice

Writing and Reading

Question

{SDO refers to the Solar Dynamics Observatory, a satellite that studies the Sun}

      In the video, the Moon seems to pause and double back partway through crossing the Sun. No, the Moon didn’t suddenly change direction in space—this was an optical illusion, a trick of perspective. Here’s how it happened: SDO is in orbit around Earth. When the transit started, the satellite was moving crosswise between the Sun and Earth, nearly perpendicular to the line between them, faster than the Moon. 15 But during the transit, SDO started the dusk phase of its orbit, traveling around toward the night side of Earth, moving almost directly away from the Sun but no longer making any progress horizontally to the Sun. The Moon, however, continued to move perpendicular to the Sun and thus could “overtake” SDO. From SDO’s 
perspective, the Moon appeared to move in the opposite direction.

At this point, the writer is considering adding the following sentence.
SDO helps scientists understand the influence of the Sun on the Earth by studying the solar atmosphere and magnetic field.
Should the writer make this addition here?

Options

A
Yes, because it provides a description of the difference between SDO and other satellites.
B
Yes, because it helps explain the reason SDO recorded the video.
C
No, because it does not adequately describe how the solar atmosphere can affect the Earth.
D
No, because it interrupts the narrative sequence detailing the optical illusion in the video.

Answer & Analysis

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