Distance and Displacement Question: MARKING BRAINLIEST!!: Photo attached below PLLLZ give an explanation on how you got it (also if u can, reccomed me a calculator that can solve these)

Which of the following is a direct benefit of the use of assembly lines in production a. laws against theft fraud and coercion are needed to protect free choice. b. the government needs to plan efficient outcomes. c. competition among producers by itself cannot ensure a wide range of consumer choices. d. works pressure the government to guarantee minimum wages