Final answer:
Web servers cannot directly access a firm's back-end databases using HTML.
Step-by-step explanation:
The statement is False. Web servers cannot directly access a firm's back-end databases using HTML. HTML is a markup language used for creating the structure and presentation of web pages, and it doesn't have the capability to interact directly with databases. However, web servers can use server-side scripting languages like PHP, Python, or Java to connect to databases and retrieve or manipulate data.