I'll choose 'r' because it's one of the most common consonants in English. The letter 'r' frequently appears in words, often near vowels like 'a'. Since we know there's an 'a' in the 8th position, there's a good chance 'r' might appear elsewhere in the word, possibly in common patterns like 'ar', 'ra', or 'pr'. Additionally, with only 3 more wrong guesses allowed, focusing on high-frequency letters gives us the best chance of progress.