Final answer:
The use of capitalized words in game rules typically serves to highlight specific elements or sections of the game board, helping players to easily match instructions with physical components.
Step-by-step explanation:
The purpose of using all capitalized words in the board game rules appears to be b) to indicate text from the game board. This is often used in game instructions to refer to specific elements or sections of the game board, helping players to easily identify those components in the physical game. Capitalization serves as a visual cue that connects the written instructions with the actual game layout, ensuring that players understand which part of the game board is being referenced in the rules.