fix: force question to have 1 answer to avoid accessability issues

Author: sof202

where_is_my_understanding/quizes/introduction_to_machine_learning.json

@@ -4,19 +4,19 @@
         "type": "multiple_choice",
         "answers": [
             {
-                "answer": "Machine learning is the field of study that gives computes the ability to learn without being explicitly programmed",
+                "answer": "Machine learning is the field of study that gives computes the ability to learn without being explicitly programmed.",
                 "correct": true,
-                "feedback": "Correct: You could also have 'The science (and art) of programming computers so they learn from data'"
+                "feedback": "Correct: You could also define it as 'The science (and art) of programming computers so they learn from data'"
             },
             {
                 "answer": "Machine learning is about writing explicit rules and algorithms to solve specific problems",
                 "correct": false,
                 "feedback": "Incorrect: Machine learning isn't about pre-written rules, but instead learning from data following general patterns"
             },
             {
-                "answer": "The science (and art) of programming computers so they learn from data",
-                "correct": true,
-                "feedback": "Correct: You could also have 'Machine learning is the field of study that gives computes the ability to learn without being explicitly programmed'"
+                "answer": "Machine learning is a technique where algorithms are programmed to iteratively refine their code until they achieve optimal performance.",
+                "correct": false,
+                "feedback": "Incorrect: Generally, ML algorithms adjust their parameters, not their underlying code."
             },
             {
                 "answer": "Machine learning is about storing and retrieving vast amounts of data efficiently, like a database system.",