Final answer:
The correct sample space for the management's decision on a construction project is A. (go ahead, cancel), which represents the two possible outcomes: proceeding with the construction or cancelling the project.
Step-by-step explanation:
The question relates to the concept of the sample space in probability theory. The sample space is the set of all possible outcomes of an experiment. Given the scenario presented, the correct sample space for the management's decision on the construction of a new skyscraper would be: A. (go ahead, cancel). This is because there are two possible outcomes: the management can either decide to proceed with the construction, represented by 'go ahead,' or opt not to proceed, represented by 'cancel.'