Which sentence shows the correct use of the word tinder?

Responses

When planting herb seeds, Janet uses tinder to poke holes in the soil.
When planting herb seeds, Janet uses , tinder, to poke holes in the soil.
Building a birdhouse with tinder requires patience and determination.
Building a birdhouse with , tinder, requires patience and determination.
The Revolutionary War was the tinder that sparked our democracy.
The Revolutionary War was the , tinder, that sparked our democracy.
We had plenty of tinder and logs to burn but no matches to light the fire.