fix(mcq_extract): add Korean/Chinese/Japanese answer phrases for multilingual MCQ extraction

Author: Luodian

lmms_eval/tasks/_task_utils/mcq_extract.py

@@ -36,6 +36,17 @@
     "i pick",
     "my answer is",
     "my choice is",
+    # Korean
+    "옵션",
+    "정답은",
+    "답은",
+    "답:",
+    # Chinese
+    "答案是",
+    "答案为",
+    "选",
+    # Japanese
+    "答えは",
 ]
 
 # Higher = more confident that this is the intended answer.