A and B Have Just Signed a Written Agreement for the Purchase

A and B have just signed a written agreement for the purchase by A of B's house.During the negotiations,A made it clear to B that his purchase was conditional on A conducting a building inspection of house within five days of the date of the agreement,which was satisfactory to A.However,this condition is NOT included in the agreement.In this situation

A) evidence of the building inspection would be admissible because it is a collateral agreement,the consideration for which is the agreement of purchase and sale.
B) evidence of the building inspection would not be admissible because,since this is an agreement for land,the Statute of Frauds applies to bar evidence of the building inspection.
C) evidence of the building inspection cannot be given because of the parol evidence rule.
D) evidence of the building inspection would be admissible because it is a subsequent agreement.
E) evidence of the building inspection would be admissible because it is a condition precedent to the agreement of purchase and sale.