Jerry starts a savings account with ＄$$7,000$$ at a bank. The interest rate is $$3\textbackslash\%$$ per year. How much interest will he earn in his savings account at the end of the second year? 
选项为:A:＄$$426$$  B:＄$$426.3$$  C:＄$$4,263$$  D:＄$$4,263.6$$  请回答其中一个选项.