单选题A developer has used this code within a servlet： 62.if（request.isUserInRole（"vip"）） { 63.// VIP-related logic here 64.} What else must the developer do to ensure that the intended security goal is achieved？（）ACreate a user called vip in the security realmBDefine a group within the security realm and call it vipCDefine a security-role named vip in the deployment descriptorDDeclare a security-role-ref for vip in the deployment descripto
单选题
A developer has used this code within a servlet： 62.if（request.isUserInRole（"vip"）） { 63.// VIP-related logic here 64.} What else must the developer do to ensure that the intended security goal is achieved？（）
A
Create a user called vip in the security realm
B
Define a group within the security realm and call it vip
C
Define a security-role named vip in the deployment descriptor
D
Declare a security-role-ref for vip in the deployment descripto
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