Which of the following statement(s) is/are INCORRECT? 1. Economic problems in a pure command system are solved through a mixture of the market mechanism and central planning by government. 2. The private and the public sectors own resources in a mixed economy. 3. The profit motive is a key characteristic of the pure market economy. a. Statements 2 and 3 only. b. Statements 1 and 3 only. C. Statements 1 only. d. Statements 1 and 2 only