Which sentence from the article gives the BEST evidence that current programs are often ineffective?

is this your complete question

it is the nurture that decides the behavior of a child.

explanation:

naturally, children are pure. it is an environment and the type of attention a child gets that determines their behavior.  

yes, it can be both.

the correct answer is:   [d]:

              →       " fond of fighting " .

hope this !

      best wishes!