Which of the following words below would change the connotation of the sentence from positive to negative?

Peter had thought that if he could visit the kind-eyed therapist again, he'd smash those toy cars together all day and all night, all day and all night, forever.

middle-aged
hard-faced
well-educated
short-haired

Question

Which of the following words below would change the connotation of the sentence from positive to negative?

Peter had thought that if he could visit the kind-eyed therapist again, he'd smash those toy cars together all day and all night, all day and all night, forever.

middle-aged
hard-faced
well-educated
short-haired

supie · Answer

Not C because it says from positive to negative  
Well educated would be a positive thing 
So C can be eliminated

supie · Answer

Any ideas?

Noonaaaaaa · Answer

Well I think b?
but I don't know.

supie · Answer

$\color{#0cbb34}{\text{Originally Posted by}}$ @Noonaaaaaa
Well I think b?
but I don't know.
$\color{#0cbb34}{\text{End of Quote}}$
Yes 
I agree 
hard-faced means like disrespectful 
which is negative