What is the full form of $ARC$?

$30$ pregnant women infected with $A.I.D.S.$ are admitted to a hospital ward. How many of their children are likely to be infected with $H.I.V.$?

Which one of the following statements is correct with respect to $AIDS$?

The immune system of a person is suppressed. In the $\text{ELISA}$ test,he was found positive to a pathogen.
$(a)$ Name the disease the patient is suffering from.
$(b)$ What is the causative organism?
$(c)$ Which cells of the body are affected by the pathogen?

The confirmatory test used to diagnose $AIDS$ is

In $AIDS$,the number of which type of $T$-lymphocytes decreases?