Thekla's Tailor Shop Offers Alterations to Clothing That Customers Have

Thekla's tailor shop offers alterations to clothing that customers have already purchased.During a busy season,without telling any of their customers,they begin sending half of the work to Inga's tailor shop in order to ensure they can complete the work.A customer complains that his suit has been ruined because it was improperly altered.The suit had been sent to Inga's shop.Which of the following is true?

A) The customer can sue only Inga's shop because the customer did not expressly consent to the sub-bailment.
B) Thekla's shop can sue Inga's shop.
C) The sub-bailment is not valid because it violates the principle of privity.The customer would have to sign a contract directly with the sub-bailee.
D) Thekla's shop could be liable for conversion if the customer believed the work would be done at Thekla's.
E) A sub-bailee is always considered an insurer for the purposes of the standard of care.