 <translate> What was the question for this implicit rationale, and corresponding answer?
Shivering occurs when many muscles contract a little bit all at once. Heat production is increased by shivering and non-shivering thermogenesis . Heat production is increased when many muscles contract a little bit, all at once.
 The answer: (B) <yor> Kí ni ìbéèrè tó wà nídìí àlàyé tí kò ṣe kedere yìí, kí sì ni ìdáhùn tó bá a mu? Ìmìtìtì máa ń wáyé nígbà tí ọ̀pọ̀ iṣan bá bẹ̀rẹ̀ sí rọra rọra. Ooru iṣelọpọ ti wa ni pọ nipasẹ ẹru ati non-ẹru thermogenesis. Ó máa ń mú kí ooru pọ̀ sí i nígbà tí ọ̀pọ̀ iṣan bá bẹ̀rẹ̀ sí í kùn díẹ̀díẹ̀ lẹ́ẹ̀kan náà.  Ìdáhùn: (B) 