Which of these is not a characteristic of a base?

Question

A Base is NOT:

Any Substance that turns litmus paper red

Any Substance that is slippery

Any substance that tastes bitter

Any substance that looks basic

Answer 1

It is the first option.

A base turns litmus paper BLUE and not red.

An acid turns litmus paper red.

I must get my ten points as I answered first and my answer is correct.