 <translate> Answer the following question, with explanation first. Of the following two sentences, which one is against common sense?
Options:
- Sentence A: "There is cloud in the sewer"
- Sentence B: "There is biogas in the sewer"
 <yor> Dáhùn ìbéèrè tó wà nísàlẹ̀ yìí, kó o sì kọ́kọ́ ṣàlàyé. Èwo nínú gbólóhùn méjì tó wà nísàlẹ̀ yìí ló lòdì sí èrò tó bọ́gbọ́n mu? Àwọn àyè: - Ẹsẹ A: "Àwọsánmà wà nínú ìgbọ̀nsẹ̀" - Ẹ̀ka B: "Gásì wà nínú ìgbọ̀nsẹ̀" 