"text": "Which k value is the most promising since the Silhouette Scores is the highest which is what value?",  
"options": [  
    "A. K=4, 0.36",  
    "B. K=8, 0.36",  
    "C. K=4, 0.73",
    "D. K=8, 0.73" 
],  
"correct_answer": "A", "C"