Carrie decides to offer Shelley the opportunity to purchase her motorcycle for just $500. Carrie told Jim, a mutual friend of Shelley and her, that she intended to make the offer. Later, Carrie changes her mind. Shelley approaches Carrie and says she accepts the offer. No contract was formed most likely because

A. Carrie never communicated the offer to Shelley.
B. Carrie didn't possess a serious, objective intention.
C. Jim was acting as an agent for Shelley without telling Carrie.
D. the terms of the offer weren't definite enough to form a contract.

D. the terms of the offer weren't definite enough to form a contract.

To determine the most likely reason why no contract was formed in this scenario, let's analyze the options:

A. Carrie never communicated the offer to Shelley.
This option suggests that since Carrie never communicated the offer to Shelley, there was no opportunity for Shelley to accept it and therefore no contract was formed. However, based on the information given, Carrie did communicate the offer to Shelley indirectly through Jim, a mutual friend. So, option A can be ruled out.

B. Carrie didn't possess a serious, objective intention.
This option implies that Carrie did not have a genuine intention to make a serious offer to sell her motorcycle to Shelley. If Carrie did not possess a serious, objective intention, it means there was no genuine intent to create a legally binding contract. This is a possibility that could explain why no contract was formed.

C. Jim was acting as an agent for Shelley without telling Carrie.
This option suggests that Jim, without informing Carrie, was acting as an agent on behalf of Shelley to accept the offer. However, based on the given information, it does not indicate that Jim was acting as an agent for Shelley. Therefore, option C is not the most likely reason for no contract formation.

D. The terms of the offer weren't definite enough to form a contract.
This option suggests that the terms of the offer were not specific or clear enough to create a valid contract. If the terms of the offer were vague or ambiguous, it may result in no contract being formed. Therefore, option D could also be a plausible explanation.

Considering the information provided, the most likely reason why no contract was formed in this scenario is option B: Carrie didn't possess a serious, objective intention. It appears that Carrie changed her mind after initially expressing an offer, indicating that her intention may not have been genuine or serious.