23.
___________________, the Old Inn was built in 1877 as a private home.
(a) Set in the hills overlooking the lake
(b) Setting in the hills overlooking the lake
(c) Sit in the hills overlooking the lake
(d) Sitting in the hills overlooked the lake

답은 a 입니다. 주어자리여서 b인 줄알았어여 설명해 주시면 감사하겠습니다.

25. 

The homemade breakfasts are _______________ and good.

(a) full

(b) filled

(c) fill

(d) filling

답은 d입니다. 등위접속사 and때문에 형용사 고르는 문제인거 같은데. 이해가 안됩니다.

설명부탁드려요