The total number of baseball cards is the least common multiple of $$2$$, $$3$$, and $$5$$, i.e. $$\left[ 2,3,5\right]=2\times3\times5=30$$. 
Avril likes collecting baseball cards. The number of cards she has is divisible by $$2$$, $$3$$, and $$5$$. How many baseball cards does Avril have at least? 
a: $$15$$ 
b: $$20$$ 
c: $$30$$ 
d: $$60$$ 