$$2^{5}$$ means $$2$$ multipled by itself $$5$$ times, i.e. $$2^{5}=2\times2\times2\times2\times2=32$$. What is $$3^{4}$$ equal to? 
选项为:A:$$7$$  B:$$12$$  C:$$27$$  D:$$81$$  E:None of the above  请回答其中一个选项.