The correct option is B supported
The word 'abandoned' refers to having been deserted or left.
Option A, saved refers t keeping safe or saving someone from harm or danger.
Option B, supported refers to giving assistance to someone.
Option C, pleased refers to feeling or showing pleasure or satisfaction.
Option D, encouraged refers to giving hope, support and confidence to someone.
Thus, according to the meaning, the word 'supported' is the opposite of the word 'abandoned'.