North Korea has cut off its hotlines with which nation in june 2020?

North Korea has cut off its hotlines with which nation in june 2020?A. South Korea
B. China
C. Japan
D. US

North Korea has said that it is cutting communication hotlines with South Korea. At least 49 hotlines have been set up between the two nations for diplomatic talks, discussions over economy and military operations and for coordination of air and sea traffic.