Please read the following thesis statement: In William Faulkner’s As I Lay Dying, the child is used as a vehicle to portray the South’s arrested development. Which of the following statements is/are correct?
选项：

A:The context of the thesis statement is "William Faulkner's As I Lay Dying".
B:The subject of the thesis statement is "the child".
C:The claim of the thesis statement is "is used as a vehicle to portray the South’s arrested development".
D:This sentence is a strong thesis statement.