Answer:
e) None of the above
Step-by-step explanation:
Agency refers to a relationship between a principal i.e the person who allows another person i.e the agent to act on his behalf and allow him to do such acts which the principal in the ordinary course himself would.
Agency can be express or implied. In the former case, the agency agreement is executed and terms and conditions between the two parties are specified in written form.
In case of implied agency, the agency is implied from the conduct of both parties i.e their relationship.
Ratification of an agreement or a contract refers to making it valid by formal approval or confirmation of terms by both parties, in the same sense and in the same context.
In the given case, an individual posted a notice for sale of laptop for a certain price. During his absence, the same laptop was sold by his roommate for a lower consideration than specified by the individual.
Herein, the individual did not authorize the roommate to sell the laptop. Thus, the individual may approve i.e ratify the action of roommate expressly, if such a formal agreement exists or via implied ratification wherein the individual accepts the consideration of $500 without objecting to the roommate's action.