Explanation:

- Option 1: Lunar Eclipse (Blood Moon)

- During a total lunar eclipse, Earth blocks sunlight from reaching the Moon, casting a shadow.

- The Moon can appear reddish, giving rise to the term "Blood Moon."

- Option 2: Full Moon

- This occurs when the Earth is between the Sun and the Moon.

- The entire face of the Moon is illuminated, but it doesn't appear red.

- Option 3: Solar Eclipse

- Happens when the Moon passes between the Sun and Earth.

- It doesn't involve the Moon appearing red.

- Option 4: Half Moon

- This is not technically accurate; more commonly known as the first or last quarter.

- The Moon appears half-lit and does not turn red.