## Core Concept
The velocity of sperms in the female genital tract is influenced by various factors including the characteristics of the sperm itself and the environment of the female reproductive system. Sperm motility is crucial for fertilization as it enables the sperm to move through the cervical mucus, uterus, and fallopian tubes to reach the ovum.

## Why the Correct Answer is Right
The correct velocity of sperms in the female genital tract is approximately 1-4 mm/min or 1-2 cm/sec. This velocity is essential for the sperm to travel through the female reproductive tract, which can be up to 20 cm long, and to reach the egg for fertilization. The movement is facilitated by the contractions of the uterus and fallopian tubes and is also influenced by the rheological properties of the cervical mucus.

## Why Each Wrong Option is Incorrect
**Option A:** This option is incorrect because it does not provide a plausible velocity for sperms in the female genital tract.
**Option B:** This option is incorrect as it suggests a much higher velocity than what is physiologically observed.
**Option D:** This option is incorrect because it suggests a much lower velocity than what is necessary for sperms to reach the ovum for fertilization.

## Clinical Pearl / High-Yield Fact
A key point to remember is that normal sperm velocity is crucial for fertility. According to the World Health Organization (WHO), a sperm velocity of less than 25 μm/s is considered abnormal. This fact is important for the evaluation of male infertility.

## Correct Answer Line
**Correct Answer: C. 1-4 mm/min.**