Choose from:
 (a). Therefore, if you suspect that something combustible might be in your fireplace, remove it and store it in a safe place. Do not allow pets or children to enter your home while watching a fire; even unexpected small children can cause problems with burns.;
 (b). Make sure to ensure that any fireplace/wood you're using is equipped with fire extinguishers. Always contact the professionals or fire extinguisher experts if you are not sure where to get a fire extinguisher at this point.;
 (c). Only burn tinder (such as pine needles or tiny sticks), kindling (small sticks or pinecones), and fuel (large logs, up to about 14 " long). Burning hardwood (such as maple and oak) will diminish the amount of soot and ash buildup in your chimney.;
 (d). Use candles and incense to keep yourself safe. You can light incense infrequently.;Choose from options above and answer: What most naturally follows?

How to use a fireplace safely 
Burn safe materials. 
Only burn natural materials in your fireplace; never introduce foreign substances, including cardboard, newspaper, or paper trash. These substances burn poorly, produce a lot of smoke, and release chemicals into the air.
Answer:
(c).