Which sentence contains adjectives that are not

Question

coordinate? (1 point)
I gripped the cold metal pole on the
crowded train.
The train was hot, crowded, and loud
on the way to work.
The train was quiet, empty, and
peaceful on the way home from work.
A brief, clear announcement indicates
when the next train will arrive on the
platform.

Answer 1

The sentence "A brief, clear announcement indicates when the next train will arrive on the platform." contains adjectives that are not coordinate.