已知一个正整数有$$48$$个正因数，它最多可以有多少个质因数？  It is known that a positive integer has $$48$$ positive factors, at most how many prime factors does it have?
选项为:A:$$3$$  B:$$4$$  C:$$5$$  D:$$12$$  E:$$48$$  请回答其中一个选项.