Which sentence creates the MOST subjective tone?

Question

Pluto is still orbiting around the sun.

Pluto is no longer considered a planet in the solar system.

As of 2006, Pluto is considered a “dwarf planet.”

Some kids don’t even know Pluto was once a planet.

Answer 1

The sentence that creates the MOST subjective tone is:

"Some kids don’t even know Pluto was once a planet."

This sentence expresses a viewpoint about children's knowledge and evokes an emotional response regarding the perception of Pluto's status, making it more subjective compared to the other factual statements.