A sold a parcel of land to B covered by TCT NO. 152 with C as a witness. When D wanted to buy a property, he executed a special power of attorney for E to buy a property for him. E entered into a contract of sale with A for the purchase of the same lot and registered it under the name of D. Who between B and D has a better right over the lot?

• A. D has a better right because of prior registration;
• B. B has a better right because he is the first buyer;
• C. D has a better right because he is the buyer in good faith;
• D. D has a better right because the knowledge by his agent of a prior sale is immaterial.