"Ces remarques intelligentes méritent d'être considérées."
Translation:These intelligent remarks deserve to be considered.
Can you remember that the closer your translation from the original, the better? You cannot always guess what Duolingo is willing to teach you. In this case, if you use a noun, you miss the passive infinitive of the verb "considérer". Let's hope you remember this construction when you get the English sentence for back translation to French.