During a solar eclipse, the correct answer is option 2: the moon comes in between the sun and the earth.

A solar eclipse occurs when the moon passes directly between the sun and the earth, casting a shadow on a portion of the earth`s surface. This alignment happens during the new moon phase, when the moon is positioned directly between the sun and the earth. As a result, the moon blocks the sunlight from reaching the earth`s surface, causing a temporary dimming or blocking of the sun`s light.

Option 1, stating that the earth comes in between the sun and the moon, is incorrect. During a solar eclipse, the moon is positioned between the sun and the earth, not the other way around.

Option 3, claiming that the moon comes exactly halfway between the earth and the sun, is incorrect as well. The moon`s distance from the earth can vary, and it is not always exactly halfway between the earth and the sun.

Option 4, suggesting that the sun comes in between the earth and the moon, is also incorrect. The sun remains stationary and does not change its position during a solar eclipse.