Which of the following statements about eclipses of the Sun is true?

For a total eclipse of the Sun to happen, the Moon must get directly in front of the Sun, as seen from Earth

When a total eclipse of the Sun is visible, it can be seen over half the Earth each time

During a total eclipse of the Sun, the Sun moves into the Earth’s shadow

The ancient Greeks and Romans could not see eclipses of the Sun, they are a modern sight that’s only become visible to us recently