Bill contracts with Judy 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 Judy, if any?

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Bill continues to be contractually bound to Judy to ensure that her car gets washed, unless he already paid Paul for the job.

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Bill has no duty to Judy so long as she did not expressly object to the delegation.

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Bill continues to be contractually bound to Judy to ensure that her car gets washed, but only if the contract expressly prohibited delegation.

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Bill continues to be contractually bound to Judy to ensure that her car gets washed.

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Bill has no duty to Judy, regardless of whether she objected to the delegation.