THE WORD "WHOM" IN THE SECOND PARAGRAPH REFERS TO ____ A....

67. - DE THI THU DAI HOC MON ANH VA DAP AN
DE THI THU DAI HOC MON ANH VA DAP AN
67. The word "whom" in the second paragraph refers to ____ A. Garfield B. Garfield's assassin C. a Union army general D. McKinley