If some people clench teeth or fists to ... nonverbal cue used?

If some people clench teeth or fists to show endurance or anger without saying anything, for what is the nonverbal cue used?

Lu Zhishen, nicknamed Hua monk, killed the town of Guanxi with three fists in Weizhou, pulled down willows in Xiangguo Temple and rescued Linchong in boar fores.t(把以上英文句子翻译成中文)

【单选题】arms aloft and fists clenched ... Did the writer (a) wrap her arms around her body, or (b) lift her arms above her head? A. wrap her arms around her body B. lift her arms above her head?

Boxing Day is a bank holiday in the United Kingdom, which means Boxing Day is ( ) A: a day for bankers to enjoy watching boxing B: a day off for people working in banks throughout Britain C: a public holiday D: a day for combat sport in which two people fight each other using their fists for competition