All of the following are examples of unethical practices in engineering economy with the exception of $\_\_\_\_\_\_\_\_\_\_$Question $19$ Select one:a$.$failing to bring attention to a potential safety problem in construction due to fear of retribution.b$.$using faulty or inaccurate data.c$.$identifying all feasible alternatives for a given project.d$.$when weighing alternatives, using optimistic estimates for one alternative while using pessimistic estimates for others.