What is an example of a legal agreement that would likely be void?

A contract for the sale of illegal goods is an example of a legal agreement that would be considered void because it lacks a lawful purpose. In contract law, for an agreement to be valid and enforceable, it must be made for a legal purpose, and both parties must have the capacity to contract. Selling illegal goods goes against public policy and statutory provisions, rendering any contract related to such goods unenforceable in a court of law.

In contrast, the other options involve legal agreements that fulfill the essential requirements of a valid contract, including mutual consent, a lawful object, and consideration. An employment contract with specific duties establishes a legal relationship between an employer and employee, while a rental agreement governs the lawful use of property. Similarly, a loan agreement with interest adheres to legal lending practices and does not violate any laws. Therefore, option B stands out as the only choice that represents a void agreement due to its inherently illegal nature.