The correct answer is: Wood and bleaching powder.
Paper is made from wood pulp, which is a mixture of cellulose fibers. Cellulose is a long, chain-like molecule that is found in the cell walls of plants. To make paper, wood is first chopped into small pieces and then cooked in a solution of sodium hydroxide (lye). This process breaks down the wood into its individual cellulose fibers. The fibers are then washed and bleached, and then they are mixed with water and other chemicals to form a slurry. The slurry is then spread out on a moving belt, where it is dried and pressed into sheets of paper.
The other options are incorrect because they do not include all of the necessary ingredients for making paper. Option A does not include sodium hydroxide, which is necessary to break down the wood into its individual cellulose fibers. Option B does not include water, which is necessary to dissolve the sodium hydroxide and to form the slurry. Option C does not include calcium, which is necessary to neutralize the sodium hydroxide and to prevent the paper from becoming too acidic. Option D does not include resin, which is a substance that is sometimes added to paper to make it stronger and more durable.