Question

during a total solar eclipse, the moon passes directly between earth and the sun, temporarily blocking our view of the sun. ______ astronomers can study the suns outer atmosphere, or corona, which is normally invisible due to the suns intense brightness. which choice completes the text with the most logical transition? choose 1 answer: a however, b at this time, c in other words, d earlier,

Explanation:

• Option A "However" is used for contrast, but the second sentence is a result of the solar eclipse (not a contrast), so A is incorrect.
• Option B "At this time" refers to the time of the total solar eclipse (when the moon blocks the sun), and it logically connects the eclipse event to astronomers studying the corona during that event.
• Option C "In other words" is for rephrasing, but the second sentence is not a rephrasing of the first, so C is incorrect.
• Option D "Earlier" refers to a time before the eclipse, but the study of the corona happens during the eclipse, so D is incorrect.

Answer:

B. At this time,