The correct option is C Supported
The word 'abandoned' refers to having been deserted or left.
Option A, supported refers to giving assistance, especially financially.
Option B, encouraged refers to giving support, confidence or hope to someone.
Option C, pleased refers to feeling or showing pleasure and satisfaction.
Option D, saved refers to keeping and storing up something for future use.
Thus, according to the meaning, the word 'supported' is the opposite of the word 'abandoned'.