Explain what would happen if conditions changed that causes the seaweed to die now striped fish stand out to predators more than solid fish how could natural selection result in the change to relative numbers of solid and striped fish?

An organism change itself in response to the surrounding environmental condition.

Explanation:

Since striped fishes are able to save themselves from the predators due to their natural ability , the solid fishes would be an easy prey to the predators. This would lead to reduction in the number of solid fishes. Also the sea weed started dying because of environmental change. Thus, predators would shift their feeding pattern from sea weed to easily identifiable fish that is the solid fish and hence the solid fish may deplete rapidly.

Also the striped fishes in later stages may undergo natural selection to prevent themselves from the predators.

the answer would be d