Avoid putting flammable objects near hot surfaces. Make unsafe objects like dishwasher detergent unreachable for children. Supervise children while cooking and there are in kitchen.
I would choose D. It isn't A because there isn't a clear comparison in the passage. It isn't B because there is no contradiction. C simply doesn't make sense. If you had a strong feel why would you make it seem insignificant? So that is why I picked D.
