Indexes may be created or dropped at any time.

Indexes in SQL can indeed be created or dropped at any time during the lifecycle of a database. Indexes are used to improve the speed of data retrieval operations by providing quick access paths to data based on the indexed columns. They can be added to speed up queries or removed if they are no longer necessary or if they degrade performance for certain operations.

Conclusion:
The statement "Indexes may be created or dropped at any time" is Option A: True. Hence, the correct answer is True.