Archer, in Chicago, wrote to Ganze in New York City offering to purchase her antique car. When she received the letter, Ganze mailed an acceptance. After she mailed the letter, Ganze changed her mind and sent a telegram rejecting the offer. The acceptance letter reached Archer one day before the telegram. Did a contract result

No

Explanation:

Remember, in business law, as long as both parties did not sign a contractual document, the purchase is not legal.

In this case, it could be observed that Ganze only "mailed an acceptance" not a signed document between both parties agreeing on the purchase of her antique car.

Also, the fact that she quickly sent a telegram letting  Archer know that she is rejecting the offer, shows that she acted in good fate to withdraw her acceptance on time.

answer about 4-5 percent of the labor force is unemployed;