Step 1: Understanding the Question:
The question asks about the legal rule governing when the communication of a proposal (offer) is deemed complete under the Indian Contract Act, 1872.
Step 2: Key Legal Principles and Approach:
The rules regarding the communication of proposals, acceptances, and revocations are laid down in Section 4 of the Indian Contract Act, 1872.
Step 3: Detailed Explanation:
• Statutory Provision: Section 4 (Paragraph 1) of the Act states: "The communication of a proposal is complete when it comes to the knowledge of the person to whom it is made."
• Implications of the Rule: A proposal has no legal effect until the offeree actually receives and is made aware of its contents.
• For example, if A writes a letter offering to sell a car to B, and posts it on Monday, but B receives and reads the letter only on Wednesday, the communication of the proposal is complete on Wednesday.
• Analysis of Distractors: Option A describes the completion of the communication of an acceptance as against the proposer (often known as the postal rule of acceptance), but does not apply to the proposal itself.
• Mere writing down (Option B) or entering the public domain (Option C) does not satisfy the requirement of coming to the specific knowledge of the offeree.
• Therefore, Option (D) is the correct statutory rule.
Step 4: Final Answer:
The communication of a proposal is complete only when it comes to the knowledge of the person to whom it is made, making Option (D) the correct answer.