sparql - How can we get the list of all C-Class Articles in Wikipedia using Wikidata Query Service?

Question

I am able to get the list of all Good Articles on Wikipedia through the code mentioned. But how can I get the list of all C-Class articles in Wikipedia?

SELECT ?sitelink ?itemLabel WHERE {
    ?sitelink schema:about ?item;
    wikibase:badge wd:Q17437798.
    ?sitelink schema:isPartOf <https://en.wikipedia.org/>.
    SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en" } .
}