The correct response is:
A temporary shortage of paper will be remedied as consumers bid up prices, and paper production increases due to the rising profits associated with higher prices.
In the context of reduced supply due to the destruction of paper mills from forest fires, the market will experience a shortage of paper. As consumers demand more paper than is available, prices will naturally increase. The higher prices will incentivize remaining paper producers (if any) to increase production or encourage new entrants to the market, ultimately helping to resolve the shortage over time as supply adjusts to meet demand.