17) Choose the sentence that shows correct punctuation.
My puppy is still so little he was only two pounds when I got him that sometimes we lose him around the house.
a.) My puppy is still so little, he was only two pounds when I got him, that sometimes we lose him around the house.
b.) My puppy is still so little, he was only two pounds when I got him that sometimes we lose him around the house.
c.) My puppy is still so little - he was only two pounds when I got him - that sometimes we lose him around the house.