Unlike a total solar eclipse where the Moon completely obscures the Sun, an annular eclipse leaves a bright ring of sunlight visible around the Moon's silhouette.(-----------------------)The Moon appears smaller than the Sun and leaves a bright ring, or "annulus," of the Sun's outer edges visible around it. This creates the appearance of a "ring of fire" in the sky.

Option 3-This option logically explains why an annular eclipse occurs, directly connecting to the concept of the Moon appearing smaller than the Sun and leading into the next part of the paragraph about the bright ring of sunlight. Sentence 1 discusses safety precautions during an annular eclipse but does not provide relevant information about the mechanics of the eclipse itself. Sentence 2 mentions a lunar eclipse and introduces a new event, which diverts attention from the main topic of the annular eclipse. Sentence 4 relates to light behavior but inaccurately describes the cause of the ring of sunlight during an annular eclipse, not aligning with the main focus of the passage.