What is the antecedent in sally wrote a letter to herself and said it was from ben

Solve this analogy problem: thick : thin : : heavy : question 1 options: gray round rosy light

Can anyone plz with this question i accidentally posted on physics it's 99 points plus this 5 ponts and will mark as brainliest link :

What is the definition of scathing? a. to assail with abusive language c. to deter by advice or persuasion b. bitterly severe, as a remark d. the west wind; a mild wind