Q1: Pick out the wrong statement.

ANS:D - none of these.

"None of these" simply means that none of the provided statements are incorrect. In other words, all the statements are correct. Let's review the statements provided:

1. Complete unity of command exists in a line organization. - This statement is generally true. In a line organization, each employee typically reports to only one supervisor, ensuring a clear and direct chain of command.
2. Line organization is not suitable for expansion and growth of an industry. - This statement is incorrect. While line organization may have limitations in managing complex or rapidly growing industries, it can still be suitable for certain types of industries and organizational structures, particularly smaller or less complex ones.
3. In line and staff organization, "line" executes and "staff" directs. - This statement is also generally true. In a line and staff organization, the line refers to the primary operational units responsible for executing tasks, while staff units provide specialized expertise, advice, and support to the line units.