The articles 'the', 'an' and 'a' are mainly divided into definite and
indefinite. 'The' is a definite article used when the noun is specific
(or when the noun is made known to the speaker), whereas 'a' and 'an'
are used when the noun is non specific.
We omit the article before plural countable nouns that are spoken of in general sense.
In the given sentence, the nouns 'dogs', 'snow dogs' and 'lap dogs' are plural countable nouns that are spoken of in the general sense.
Hence we do not put an article in front of any of the nouns.
So, option C is the right answer and the other answers are wrong.