Statement and Assumption - Verbal and Reasoning

Directions to SolveIn each question below is given a statement followed by three assumptions numbered I, II and III. You have to consider the statement and the following assumptions, decide which of the assumptions is implicit in the statement and choose your answer accordingly.
Q1:

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.

A Only I and II are implicit

B Only II and III are implicit

C Only I and III are implicit

D Only III is implicit

E None of these

ANS:D - Only III is implicit

Explanation: 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.