Tubectomy is a method of sterilization in which:

Explanation

The correct option is: a. Small part of the Fallopian tube is removed or tied up Here's an explanation of each option:a. Small part of the Fallopian tube is removed or tied up: Tubectomy, also known as female sterilization, involves blocking or sealing a woman's Fallopian tubes. This procedure can be done by removing a small section of the tubes or by tying them off, which prevents the eggs from moving from the ovaries to the uterus. It's a permanent method of contraception. b. Ovaries are removed surgically: Surgical removal of the ovaries is called oophorectomy and is not the same as tubectomy. Oophorectomy may be performed for various medical reasons, but it is not a method of sterilization. . Small part of vas deferens is removed or tied up: This procedure is known as a vasectomy and is a form of male sterilization. It involves cutting or blocking the vas deferens, the tubes that carry sperm from the testes to the urethra. It's a permanent method of contraception for men. d. Uterus is removed surgically: Surgical removal of the uterus is called a hysterectomy and is not a method of sterilization. Hysterectomy is typically performed for various medical reasons, such as treating uterine conditions like fibroids or addressing certain gynecological cancers. Summary: Tubectomy (option a) is a method of sterilization for women, where a small part of the Fallopian tube is removed or tied up to prevent the eggs from reaching the uterus, thus making pregnancy impossible. It is a permanent method of contraception. The other options (b, c, and d) refer to different surgical procedures but are not methods of sterilization through blocking or removing the Fallopian tubes.