 <translate> Give stream of consciousness and then the final answer. Two persons A and B can complete a piece of work in 30 days and 45 days respectively. If they work together, what part of the work will be completed in 7 days?
Options:
(A) 2/5
(B) 7/18
(C) 1/4
(D) 1/9
(E) 2/6 <yor> Fún un ní ìmọ́lẹ̀, kó o sì wá fún un ní ìdáhùn tó ṣe pàtó. Àwọn èèyàn méjì A àti B lè parí iṣẹ́ kan láàárín ọgbọ̀n [30] ọjọ́ àti ọgbọ̀n [45] ọjọ́. Bí wọ́n bá ṣiṣẹ́ pa pọ̀, apá wo nínú iṣẹ́ náà ni wọ́n á parí ní ọjọ́ méje? Àwọn àyè: (A) 2/5 (B) 7/18 (C) Ìlàjì (D) 1/9 (E) 2/6 