The main cutting tools for paper cuttings are______. A: a fork B: a pair scissors C: an engraving knife D: a tube of glue

The main idea of the passage is ________． A: to help people find hope and comfort in paper cuttings B: to persuade people to use paper-cuttings to decorate their rooms C: to teach people how to make paper-cuttings D: to make a general introduction of paper-cutting