Statement: Give this packet to Mr. X at his residence and return immediately. In case you are likely to be late inform me - Mr. A tells his clerk.
Assumptions:
1. The clerk never informs about his late coming.
2. The clerk may not obey Mr. As instructions.
3. The clerk may not inform his late coming unless instructed
Answer: D
Clearly, the statement is merely a reminder. So, I is not implicit. Besides, the clerk is expected to execute his boss' order. So, II is not implicit. Also, a hunch that the clerk may not inform about his late coming has led Mr. A to instruct the clerk to do so. So, III is implicit.