Final answer:
A pharmacy is required to place a sign with specific information at a certain location when it commences operations.
Step-by-step explanation:
In accordance with the requirements for a pharmacy establishment, a sign in block letters not less than a certain height must be placed at a specific location. This sign should state specific information about the pharmacy. While the question does not provide the exact height, location, and statement to be included on the sign, it is important for the pharmacy to comply with regulations related to signage in order to inform customers and meet legal requirements.