Which of the following reflexive pronouns (反身代词) is used as an appositive?

A、 I have nothing to say for myself .
B、 I blame myself for what has happened.
C、 It was the President himself who opened the door.
D、 She cut herself on some broken glass.

【正确答案】 C

【答案解析】解析：C“是总统自己打开了门”，himself是the President的同位语，故C为答案。A“对于我自己，我无话可说”，myself作介词for的宾语；B“我因为发生的事情责怪自己”，myself作动词blame的宾语；D“她在碎玻璃上划伤了”，herself作cut的宾语。