Final answer:
The contract between Alex and Simone for lawn care services is voidable at Alex's discretion due to him being a minor. Simone, as an adult, cannot void the contract, but Alex can choose to enforce it or not.
Step-by-step explanation:
In the scenario where Alex, a high school freshman, presents a written contract to Simone to provide lawn care services, the contract's enforceability depends on the fact that Alex is a minor. Legally, when a minor enters into a contract, the contract is generally considered voidable at the discretion of the minor. However, because the contract is for lawn care services, which can be considered a part of business transactions, it could be seen as valid until or unless Alex chooses to void it.
Therefore, the correct option is:D) The contract is voidable at the discretion of Simone due to Alex's age. Simone would not have the right to void the contract because she is presumably an adult; however, Alex, being a minor, does have that right.