Match List I with List II

List I	List II
(A) Amniocentesis	(I) Ligation of fallopian tube
(B) Maternal mortality rate	(II) Ligation of vas deferens
(C) Vasectomy	(III) Death rate
(D) Tubectomy	(IV) Testing of sex

The correct option is (A) - (IV), (B) - (III), (C) - (II), (D) - (I).

Let us break down the matching process step-by-step to understand why this option is correct:

1. (A) Amniocentesis matches with (IV) Testing of sex:
Amniocentesis is a prenatal diagnostic procedure where a small amount of amniotic fluid, which contains fetal tissues, is extracted from the amnion surrounding a developing fetus. The DNA/chromosomes from these cells are then examined to detect genetic abnormalities and can also determine the sex of the fetus. Therefore, Amniocentesis is associated with testing of sex.

2. (B) Maternal mortality rate matches with (III) Death rate:
Maternal mortality rate (MMR) is a demographic measure that represents the number of maternal deaths due to pregnancy-related complications per 100,000 live births. Because it is a specific type of death rate, it directly relates to the concept of death rate.

3. (C) Vasectomy matches with (II) Ligation of vas deferens:
Vasectomy is a surgical procedure for male sterilization. During this procedure, the male vasa deferentia (the ducts that carry sperm from the testes) are cut and tied or sealed (ligated) to prevent sperm from entering the urethra, thereby preventing fertilization.

4. (D) Tubectomy matches with (I) Ligation of fallopian tube:
Tubectomy (also known as tubal ligation) is a surgical sterilization procedure for females. In this procedure, the fallopian tubes are cut and tied (ligated) to block the path of eggs from the ovaries to the uterus, thus preventing pregnancy.

By aligning these matches, we get:
(A) → (IV)
(B) → (III)
(C) → (II)
(D) → (I)