The precise ______of the art museum are not yet known, as the architects are still figuring out

an accurate design plan for the structure.

(b) pattern,  (d) dimension.

답은 (d) 입니다. 물론 (d)가 치수.크기로 맞습니다. 하지만 (b)도 가능한 것같은데

왜 되지 않나요..?