Which modern word does this etymological information most likely belong to?

"the face," especially as expressing emotion, from anglo-fr. chere "the face," o. fr. chiere "face, countenance, look, expression," from l. l. cara "face" (cf. sp. cara), possibly from gk. kara "head," from pie root *ker- "head." from mid-13c. as "frame of mind, state of feeling, spirit; mood, humor."

a. cherry

b. chair

c. clarity

d. cheer