Select the most appropriate option to fill in the blank.

The air-conditioner has made ceiling fans a little ______ in today's world.

redundant

The most appropriate option to fill in the blank is redundant.

The word "redundant" means unnecessary or superfluous. It is the most appropriate word to use because it accurately describes how ceiling fans have become in today's world. Air-conditioners are now the preferred way to cool down, making ceiling fans redundant.

The other options are not as appropriate.

• Extinct means no longer existing. It does not make sense in this context, because ceiling fans are still available and in use.
• Absurd means ridiculously foolish or unreasonable. It does not make sense in this context, because ceiling fans are not ridiculous or unreasonable.
• Additional means extra or supplementary. It does not make sense in this context, because ceiling fans are not extra or supplementary to air-conditioners.