This is a business law question PLEASE I really need HELP !!! PLEASE answer ALL questions!!!! THANK YOU.

Bill contracts with Jane to wash her car and then delegates the duty to Paul. Paul fails to wash the car. Which of the following is true regarding Bill's duty to Jane, if any? Bill has no duty to Jane regardless of whether she objected to the delegation. Bill has no duty to Jane so long as she did not expressly object to the delegation. Bill continues to be bound to Jane to see that her car gets washed only if the contract expressly prohibited delegation. Bill continues to be bound to Jane to see that her car gets washed unless he already paid Paul for the job. Bill continues to be bound to Jane to see that her car gets washed. Sally agrees to mow Paul's yard for $300 for the summer. Paul wishes to assign the contract to his grandmother. Sally objects because Paul's yard is very small while the grandmother's yard is over an acre. Which of the following is the correct legal outcome for the dispute between Sally and Paul? Paul will win because he may validly assign the contract without Sally's consent. Sally will win because all assignments are invalid without the obligor's consent. Sally will win because Paul's attempted assignment would increase the duties to which she agreed. Sally will win unless Paul paid her the $300 in advance in which case Paul will win. outcome for the dispute between Sally and Paul? Paul will win because he may validly assign the contract without Sally's consent. Sally will win because all assignments are invalid without the obligor's consent. Sally will win because Paul's attempted assignment would increase the duties to which she agreed. Sally will win unless Paul paid her the $300 in advance in which case Paul will win. Paul will win so long as he tells Sally about the assignment prior to the time that she begins any performance whatsoever