Which of the following would not change the demWhich of the following would not change the demand for cargo trucks? Select one: a. New global sources for cheaper truck assembly components b. Newly developed diesel-electric truck engines c. A recession in the country d. Construction of new interstate highwaysand for cargo trucks? Select one: a. New global sources for cheaper truck assembly components b. Newly developed diesel-electric truck engines c. A recession in the country d. Construction of new interstate highways