Why does a lunar eclipse not occur every time there is a Full Moon?

The Moon moves too quickly through Earth's shadow to be noticeable.

The Moon's orbit is tilted, so it usually passes above or below Earth's shadow.

The Earth is often too far from the Sun to cast a shadow that reaches the Moon.

The Sun's corona is too bright, illuminating the Moon even when it is behind Earth.

An astronomer observes that from a 'top-down' view, the Sun, Earth, and Moon are in a straight line during a Full Moon, yet no eclipse occurs. What does a 'side' view of the system most likely reveal?

The Earth is not positioned exactly between the Sun and Moon.

The Moon is positioned either above or below the shadow cast by the Earth.

The Sun is much larger than the Earth, preventing a perfect shadow.

The Moon's speed has increased, causing it to exit the alignment zone too quickly.

The Moon must be full and cross the plane of Earth's orbit.

The Moon must temporarily stop its orbit while behind Earth.

The Earth must be at its farthest point from the Sun.

The Sun's light must be temporarily blocked by another object.

The Moon appears slightly smaller in the sky.

The Earth's shadow fails to fall upon the Moon's surface.

The tides on Earth are weaker than expected.

The length of a day on Earth changes slightly.