Response A is better because it more accurately references visible details in the image, follows the prompt instructions, and reaches the correct conclusion. Response B has a major factuality issue because it incorrectly says Q118 is wrong, which also makes it less helpful.

Response A performs better because it correctly identifies details that can actually be seen in the image and follows the given instructions more closely. It also arrives at the right answer. Response B has a significant problem with accuracy since it wrongly claims that Q118 is incorrect, which makes it much less useful overall.