Answer:
D. Palled
Step-by-step explanation:
Fixed doesn't fit in because it doesn't make a proper sentence and it means to repair a broken object. Its not flared because its a way of signaling to someone. its not grew because it doesn't represent something getting more members or taller. The Answer would be D palled because it means to become less interesting or enjoyable and it is the best word that fits in with the sentence.
Have Great Day!