Parents: Wedid not hire the babysitter who was recommended because during the interview he made promises solely to persuade us to hire him. What the babysitter has said he would do if hired are merely the tasks he has learned from other interviews that parents want babysitters to do. Hence, we were not being informed of what tasks the babysitter really meant to do if we hired him. Which of the following is a dubious assumption that the argument above relies on? ['If the babysitter had been hired, he would have been unable to complete the tasks that parents want babysitters to do.', 'The babysitter did not really intend, if hired, to do the tasks he has learned from other interviews that parents want babysitters to do.', 'Most parents would not hire a babysitter who promised to do the tasks that parents want babysitters to do.', 'The babysitter did not also plan to do other tasks in addition to those that parents want babysitters to do.']