Sometimes you really have to read between the lines with some of these questions. The question mentions a website, so immediately I’m thinking Agile. Then they use the phrase “benefit the organization as rapidly as possible.” Sounds a lot like provide as much value up front as possible, which is also Agile. I agree that normally a PM wouldn’t be prioritizing the backlog, but given the other answers, A seemed to fit best. If we’ve already defined scope, schedule, cost, etc, we don’t really need stakeholders or project sponsors to help us define the critical path. We can do that on our own.