5. Crane received an unordered necktie through the mail and a letter stating that if he did not return the tie within ten days, he would be billed for it. Crane did not return the necktie and refused to pay the bill. Must he pay for the necktie? Why or why not?

5. Crane received an unordered necktie through the mail and a letter stating that if he did not retum the tie within ten days, he would be billed for it. Crane did not return the necktie and refused to pay the bill. Must he pay for the necktie? Why or why not