based on yearly sales.이게 뭔가요~???

________ being able to buy stock, employees receive an annual annuity based on yearly sales.

(a) coupled
(b) as well
(c) alike
(d) in addition to

답은 d로 알겠는데

주식을 살수 있는것 외에 근로자는 매년 연금을 받다. 그담이

based on yearly sales. 인데요 이것이 무엇인가요~??

in addition to being 인데 being이 여기서 뭐에요~????