Final answer:
The sentence is correctly completed by using 'its,' which is a possessive pronoun. This choice indicates ownership without any contraction or reference to a place or the phrase 'they are.' The correct answer is C.
Step-by-step explanation:
The correct choice that completes the sentence while conforming to the conventions of Standard English is 'b. its.' The word 'its' is a possessive pronoun, which is used to indicate ownership or association with a noun, typically referring to an object or animal. On the other hand, 'it's' is a contraction of 'it is' or 'it has,' and both 'they're' and 'their' do not fit the context of possession in the sentence.
Understanding the difference between these homophones is critical for writing coherently in English. Here are some examples using these words in different contexts:
- The dog wagged its tail because it's happy to see its owner.
- Their car is parked over there, and they're walking towards it now.