Step 1: Understanding the Concept:
This question tests the understanding of homophones, which are words that sound alike but have different meanings and spellings. The key here is to differentiate between "your" (a possessive adjective) and "you're" (a contraction for "you are").
Step 2: Detailed Explanation:
The sentence requires a word to show possession or ownership of the "contributions".
- your is a possessive adjective used to indicate that something belongs to the person being addressed. For example, "Is this your book?".
- you're is a contraction of "you are". For example, "You're going to be late".
- you are is the uncontracted form of "you're" and would make the sentence grammatically incorrect: "Send you are contributions...".
- yore is an adverb meaning "of long ago" or "in the past", which does not fit the context at all.
The blank needs to modify the noun "contributions", indicating whose contributions they are. Therefore, the possessive adjective "your" is the correct choice. The sentence should read: "Send your contributions at the earliest.".
Step 3: Why This is Correct:
The word 'your' correctly indicates that the contributions belong to the person being addressed, which fits the grammatical and contextual requirements of the sentence. The other options are grammatically incorrect or contextually inappropriate.