Consider the Following Complete Configuration Sample

Consider the following complete configuration sample:
< bean class="rewards.internal.RewardNetworkImpl" >
< property name="accountRepository" ref="accountRepository" />
< /bean>
< bean class="rewards.internal.account.JdbcAccountRepository"/>
Which of the following statements is true? (Select one)

A) This configuration is correct
B) This configuration is not valid because the first bean should have an id. Its value should be "rewardNetwork".
C) This configuration is not valid because the second bean should have an id. Its value should be "accountRepository".
D) Both (b) and (c)