Given a header in an HTTP request：X-Retries：4 Which two retrieve the value of the header from a given HttpServletRequest request？（）A、Request.getHeader（"X-Retries"）B、Request.getIntHeader（"X-Retries"）C、Request.getRequestHeader（"X-Retries"）D、Request.getHeaders（"X-Retries"）.get（0）E、Request.getRequestHeaders（"X-Retries"）.get（0）
Given a header in an HTTP request：X-Retries：4 Which two retrieve the value of the header from a given HttpServletRequest request？（）
- A、Request.getHeader（"X-Retries"）
- B、Request.getIntHeader（"X-Retries"）
- C、Request.getRequestHeader（"X-Retries"）
- D、Request.getHeaders（"X-Retries"）.get（0）
- E、Request.getRequestHeaders（"X-Retries"）.get（0）
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