Garrison has lost his employer-issued laptop someplace in the manufacturing facility he works at. He has looked for it for days but cannot find it. On Monday, Garrison tells his co-worker, Gina, that if she finds the laptop before he does, he will pay her $250. Gina says she will "keep her eyes open for it." Throughout the day, Gina checks for the laptop in places she usually sees Garrison working. On Tuesday, Gina finds the laptop and returns it to Garrison. Choose the answer that best describes any contract between Garrison and Gina.

Group of answer choices

Garrison and Gina entered into a bilateral contract when Gina found the laptop.

Garrison and Gina entered into a unilateral contract when Gina found the laptop.

Garrison and Gina entered into a unilateral contract when Gina started looking for the laptop.

Garrison and Gina did not enter into any contract.