Which of the following statements is true about hiv testing?

a. some hiv tests can provide results in as little as 20 minutes.
b. a positive hiv test result doesn't require follow-up tests, due to the high accuracy of the testing.
c. testing isn't normally necessary as hiv symptoms manifest early and are distinctive.
d. hiv testing is now conducted routinely as part of a standard general check-up for most patients.

B. A positive HIV test result doesn't require follow-up tests, due to the high accuracy of the testing.

Explanation:

HIV tests are performed by collecting a drop of blood from the fingertip. The blood is placed in two testing devices and to reach the result, the tester follows a scientifically determined flow. If both devices have the same results, the diagnosis is already closed, ie if both devices indicate that the patient is infected with HIV, the diagnosis is completed and the patient is already referred for treatment without the need for further tests. However, if there is disagreement between the results, another test is performed with a third for confirmation. Thus, the result has the same reliability as conventional exams and there is no need for repetition in the laboratory.

This method allows the patient to take the test in half an hour, know the result and receive the necessary counseling service.

what are the possible statements?