Mr. MO executed a real estate mortgage over his land in favor of Mr. ME as security for a substantial loan he obtained from the latter. The mortgage agreement provided for a first refusal clause , i.e., Mr. MO, is obligated to offer the property first to Mr. ME in case he decides to sell the property mortgaged. Which of the following statements expresses a correct legal principle?

• A. As long as the mortgage exists, Mr. MO has no right to sell his property to anyone.
• B. Mr. MO may sell the property mortgaged with the consent of Mr. ME.
• C. A violation of the right of first refusal clause will make the contract entered into by Mr. MO with anyone, void abs initio.
• D. A violation of the right of first refusal clause will make the contract entered into by Mr. ME rescissible