Answer:
The aspect of languages contained in the sentence which speakers must avoid is Incorrect Grammar.
Explanation:
The sentence reads - "Fire distinguishes are generally colored red"
The correct sentence is - "Fire extinguishers are generally colored red"
Notice the error. The speaker says distinguishers instead of extinguishers.
The above is an example of grammatical error and must be avoided for sakes of clarity.
Cheers!
