Which is the correct word to complete the sentence: "Each person should return to ____ own home."

The appropriate word to complete the sentence "Each person should return to ____ own home" is "his." This word is traditionally used as a singular pronoun to refer to an individual male. In English, the use of "his" can also serve as a generic pronoun, allowing for a more streamlined sentence structure when the gender of the person is not specified.

While "their" has become increasingly accepted as a singular pronoun in modern usage, particularly in informal contexts, "his" aligns with traditional grammatical conventions and directly matches the singular subject "each person." This choice maintains the grammatical agreement between the subject and the pronoun, emphasizing that each individual is being referred to in a singular sense.

The other options do not appropriately fit into the sentence due to their grammatical roles or the contexts in which they are typically employed. "Its" is generally used to refer to non-human entities or objects, which does not apply here. "Him" serves as an object pronoun, which does not fit in this sentence structure, and therefore cannot correctly be used in this context.