$$13 + 19 = 32$$; $$32 \div 6 = 5R2$$. There are $$2$$ students left, which means that $$6 - 2 = 4$$ more students are needed to form $6$ teams. 
There is a tournament at the pool. First, $$13$$ children signed up and then another $$19$$ children signed up. Six teams with an equal number of members each are needed for the tournament. At least how many more children need to sign up so that the six teams can be formed?~ 
Options:
A: $$1$$ 
B: $$2$$ 
C: $$3$$ 
D: $$4$$ 
E: $$5$$ 