正解:C
Based on the test method code, the statement that is true after the test code runs is that there will be five accounts where the name starts with "Test". This is because the test method is running in API version 24.0 or later, which means that it can't access pre-existing org data by default, and can only access data that it creates. Therefore, the first query that retrieves the accounts where the name starts with "Test" will return an empty list, as there are no such accounts in the test context. The test method then inserts a new account with the name "Test1", which will be the only account that the test method can access. The second query that retrieves the accounts where the name starts with "Test" will return a list with one account, which is the account that was just inserted. The test method then asserts that the size of the list is equal to 1, which will pass. The test will not fail, as there is no assertion error or exception. There will not be no accounts where the name starts with "Test", as there is one account that was inserted by the test method. There will not be six accounts where the name starts with "Test", as the test method can't access the five accounts that exist in the org data. Reference: [Isolation of Test Data from Organization Data in Unit Tests], [Understanding Test Data]