Where are the choices? it says "which sentence correctly combines" but there are no choices.
The literary device being used is Repetition.
Answer:
elastic force?
well I hope im giving you the correct definition...
something that is elastic can be stretched or compressed.
For example a bungee cord(search up). It resists the change of shape even when stretched and compressed. And because of that it applies a counter force in the opposite direction in which you would call a elastic force.
"The sensation developed into pain that grew acute. And still he endured it, holding the flames of matches clumsily to the bark that would not light readily because his own burning hands were in the way, absorbing most of the flame."