A lunar eclipse occurs when Earth comes between the Sun and the Moon. A solar eclipse occurs when the Moon comes in between the Sun and the Earth. This suggests that

A lunar eclipse is one where the moon passes through the shadow of the earth. That means the earth comes in between the moon and the sun. Hence on a lunar eclipse, the moon and the sun will be on opposite sides which suggests that when the sun will set, the moon will rise and vice versa. Since this happens on full moon days, we can conclude that the lunar eclipse occurs on a full moon day.

During a solar eclipse, the moon obscures some or a full part of the sun. That means the moon comes in between the earth and the sun. This suggests that the sun and moon are on the same sides of the earth. That means they will rise and set at around the same time. This happens on a new mon day. Therefore, we can conclude that the solar eclipse occurs on a new moon day.

Therefore option B is the correct answer.