Final answer:
The correct word to fill in the blank in the line from the chorus is 'womb,' indicating that two individuals were born from the same mother and share a common fate.
Step-by-step explanation:
The line from the chorus you're asking about refers to the birth of two individuals who share the same fate and kinship. The correct answer from the provided options to fill in the blank is 'womb,' which indicates that they are born of the same biological beginnings and share the same mother.
The term 'womb' is often used in literature to represent the origin of life and kinship. It symbolizes the nurturing environment where an embryo develops into a fetus and emphasizes the shared biological heritage of siblings.