（2016高考训练）阅读下列材料，从每题所给的选项中选出最佳选项。
体裁：议论文 话题：家庭教育 词数：726 时间：8′
Is gun play good or bad for children？For many years I emphasized its harmlessness.When concerned parents expressed doubt about letting their children have toy guns，because they didn't want to encourage them in the slightest degree to become criminals，
