Final answer:
The foolish critic in the myth who judged against Apollo was King Midas, who was then punished by being given donkey's ears for his poor judgment in musical taste.
Step-by-step explanation:
The foolish music critic who decided against Apollo was a. Midas. In the ancient Greek mythological story, Midas was presented as a king with the ability to turn everything he touched into gold, known as the 'Midas Touch.' However, he also made a critical mistake in judging a musical contest between Apollo, the god of music, and Pan, a talented musician. Midas preferred Pan's music and declared him the winner, which angered Apollo. As punishment for his lack of musical understanding, Apollo gave Midas the ears of a donkey.