Using what you know about thesis statements, which of the following is the best thesis statement if the writer wants to focus on a symbol?

Using what you know about thesis statements, which of the following is the best thesis statement if the writer wants to focus on a symbol?

Select one:

a. When the two characters meet, they identified immediate similarities between themselves.b. The color yellow, as seen in the moon and in the character's skin tone, represents the overall mood of the story.c. After Carol and Cindy walked downstairs, they saw the living room was in disarray.d. The author's use of similes and metaphors offers the reader a glimpse of Janet's thoughts.