The Guardians (Hangul: 파수꾼 ; RR: "Pasuggun "; lit. Lookout ) is a South Korean television series starring Lee Si-young, Kim Young-kwang, Kim Tae-hoon, Kim Seul-gi and Key. The drama aired on MBC on Mondays and Tuesdays at 22:00 (KST) from May 22 to July 11, 2017.

Can we draw the following conclusion?
The Guardians also aired in North Korea

OPTIONS: a). Yes b). It's impossible to say c). No
b).