No, don't confuse the poor guy. In normal usage, none of lithium, lithium ion, NiMH or LSD NiMH are prone to leaking. This is because the battery case is sealed, corrosion proof, and is not consumed when the cell is operating. You have to seriously abuse any of these cell types to make them spill their guts. (However, if you do succeed in making lithium or lithium ion cells turn inside out you will be observing fireworks. Make sure the cells are far away from anything that can be damaged or ignited if this should ever happen.)Answer is D, all the above.