Langston hires Gwendolyn to work as his agent. Langston is attempting to purchase all of the individual properties on an entire city block in Chicago so that he can tear down the existing residential structures and construct a museum of African American literature on the block. Langston knows that if he goes around and personally purchases all of the properties, the property owners on the block will eventually realize he is buying them all and could refuse to sell for the market value of the property. With that in mind, Gwendolyn is one of many agents Langston has hired in hopes of slowly acquiring title to all of the properties over a period of a couple years. Gwendolyn enters into a contract with Martha on December 1. The contract indicates that the seller is Martha and the purchaser is Gwendolyn and says nothing about Gwendolyn being an agent for any party or about Langston's involvement in/relationship to the transaction. What sort of principal is Langston? Group of answer choices Undisclosed. Nonexistent. Disclosed. Unidentified