Because of _______, Shelley was expelled from the Oxford University.

A、<em><span style="font-family: &#39;Times New Roman&#39;;">The Masque of Anarchy</span></em><span style="font-family: 宋体;">&nbsp;</span>

B、<em><span style="font-family: &#39;Times New Roman&#39;;">A Defence of Poetry</span></em>

C、<em><span style="font-family: &#39;Times New Roman&#39;;">The Necessity of Atheism&nbsp;</span></em><em><span style="font-family: 宋体;">&nbsp; &nbsp;&nbsp;</span></em>

D、<em><span style="font-family: &#39;Times New Roman&#39;;">The Triumph of Life</span></em><span style="font-family: 宋体;">&nbsp;</span>