Step 1: Understand the word "compassion".
"Compassion" means sympathy and concern for the suffering of others.
Step 2: Evaluate the options.
% Option
(1) KINDNESS: Synonym.
% Option
(2) SYMPATHY: Synonym.
% Option
(3) CRUELTY: Opposite of compassion — implies a lack of empathy or kindness.
% Option
(4) EMPATHY: Synonym.