Answer:
theme
Explanation:
The other ones don't fit and theme fits that definition
Answer:
If the experiment failed Charlie would probably have severe brain damage since it was neural surgery
“i set unrealistic goals for myself” he says
Answer:
It means "full of conflict"
Explanation:
The context of the sentence shows that their 'good friendship' stands in contrast to the 'tempestous' nature of the relationship.
Hence, the contextual meaning of tempestuous here will be It means "full of conflict".