12
(A)while
(B)as
(C)since
(D)however

while 和 however 都有然而的意思，但while是連接詞，however是副詞，所以選however的話 後面要加上逗號才成立（however, females have …

while是連接詞的然而意思，however是副詞的然而意思，用法不同在句型的標點符號之差異。

Traditionally, males have been more likely to be portrayed as clever, heroic, and adventurous in these books, while females have been more likely to be shown doing domestic chores.

Traditionally, males have been more likely to be portrayed as clever, heroic, and adventurous in these books; however, females have been more likely to be shown doing domestic chores.