**Core Concept:** Beta-thalassemia is an inherited disorder of hemoglobin synthesis, characterized by reduced or absent production of beta-globin chains. Beta-thalassemia can be major (thalassemia major) or minor (thalassemia intermedia or minor). The severity of the disease depends on the degree of beta-globin chain synthesis deficiency.

**Why the Correct Answer is Right:** In this scenario, the couple has a family history of beta-thalassemia major in a distant relative, suggesting that they are carriers of the trait. The HbA2 levels are used as a diagnostic tool to determine the severity of beta-thalassemia trait. HbA2 is a normal adult hemoglobin component, which is elevated in beta-thalassemia carriers. The risk of having a child with beta-thalassemia major depends on the degree of HbA2 elevation.

**Why Each Wrong Option is Incorrect:**

A. False: The couple's HbA2 levels are not high enough to indicate severe beta-thalassemia trait.

B. False: The couple's HbA2 levels are not high enough to indicate severe beta-thalassemia trait.

C. False: The couple's HbA2 levels are not high enough to indicate severe beta-thalassemia trait.

D. False: The couple's HbA2 levels are not high enough to indicate severe beta-thalassemia trait.

**Clinical Pearl:** The correct answer is based on the degree of HbA2 elevation, which is indicative of the couple's beta-thalassemia trait severity. In this case, the couple is likely carriers of beta-thalassemia trait, but the risk of having a child with beta-thalassemia major is low because their HbA2 levels are not high enough to indicate severe beta-thalassemia trait.

**Correct Answer:** D. False: The couple's HbA2 levels are not high enough to indicate severe beta-thalassemia trait.

In summary, the correct answer is "False" because the HbA2 levels of both partners are within the normal range (2.5-4.5%) and do not indicate a high risk of having a child with beta-thalassemia major. A couple with elevated HbA2 levels (>4.5%) would have a higher risk of having a child with beta-thalassemia major.