Concept:To find the opposite of \textit{reprimand}, which means to scold or criticise.Explanation:The sentence contrasts harsh treatment with a positive action.If you do not always scold your children, it is good to praise them sometimes.The word \textit{compliment} means to praise or express approval.It is the most fitting opposite of \textit{reprimand} in this context.The other options do not directly oppose the idea of scolding.Answer:C. compliment