In relation to the basic legal system of China:

(b) Article 428 of the Contract Law of China provides that upon the implementation of this law, the previous contract laws shall be simultaneously abolished. Based on this provision, the Supreme People’s Court has issued a Judicial Interpretation on the Application of the Contract Law.In relation to this Judicial Interpretation, state the rule of the applicable law to deal with a contractual dispute brought to the people’s court after the date of implementation of the Contract Law but the contract was concluded before that date. (4 marks)

下列降压药中，易引起尿酸升高的是（）

A.吲达帕胺

B.倍他乐克

C.缬沙坦

D.硝苯地平

E.福辛普利