单选题Given this fragment from a Java EE deployment descriptor： 341. 342.java.lang.Throwable 343./mainError.jsp 344. 345. 346.java.lang.ClassCastException 347./castError.jsp 348. If the web application associated with the fragment above throws a ClassCastException.Which statement is true？（）AThe deployment descriptor is invalid.BThe container invokes mainError.jsp.CThe container invokes castError.jsp.DNeither mainError.jsp nor castError.jsp is invoked.
单选题
Given this fragment from a Java EE deployment descriptor： 341. 342.java.lang.Throwable 343./mainError.jsp 344. 345. 346.java.lang.ClassCastException 347./castError.jsp 348. If the web application associated with the fragment above throws a ClassCastException.Which statement is true？（）
A
The deployment descriptor is invalid.
B
The container invokes mainError.jsp.
C
The container invokes castError.jsp.
D
Neither mainError.jsp nor castError.jsp is invoked.
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