Final answer:
Tubal sterilization, or tubal ligation, involves the severing or blocking of the fallopian tubes (oviducts), preventing eggs from being fertilized by sperm as a form of permanent female birth control. The correct answer is c) oviducts.
Step-by-step explanation:
Tubal sterilization, or tubal ligation, is a surgical procedure for female sterilization that involves the severing or blocking of the fallopian tubes. It is designed to prevent eggs from traveling from the ovaries through the fallopian tubes, where fertilization by sperm would typically occur. This procedure is a form of permanent birth control and is analogous to a vasectomy in males, where the vas deferens are cut or blocked to prevent sperm from being ejaculated.
Tubal ligation does not involve the testes, vas deferens, or uterus directly but is focused on the fallopian tubes, also known as the oviducts. It's a highly effective form of contraception, as it permanently prevents the passage of eggs to the location where they could be fertilized by sperm.