What news agency expressed North Korea's anger at the US last week?

Choices:
A. KCNA
B. KCJJ
C. KCWA
D. not enough information
KCNA
SEOUL — In addition to growing concerns that North Korea will pull out of the upcoming nuclear summit with the U.S., prospects for improved inter-Korean relations have also stalled, as Pyongyang demands that U.S.-South Korea joint military drills be scaled back, and a group of defectors be returned.
Just weeks after North Korean leader Kim Jong Un and South Korean President Moon Jae-in declared the beginning of a new era of peace during a historic summit held in the demilitarized zone of the inter-Korean border, Pyongyang has put further dialogue and cooperation on hold until its demands are met.
President Moon will meet with U.S. President Donald Trump in Washington on Tuesday to discuss the upcoming Trump-Kim summit and the North’s sudden conditions set for continued dialogue and cooperation.
Most of North Korea’s anger last week, expressed in official statements and reports carried by the state news agency KCNA, seemed to be directed at the U.S. It criticized the Max Thunder joint military exercise that is currently underway, and U.S. National Security Adviser John Bolton’s demands for the North’s unilateral nuclear disarmament. North Korea in particular objected to Bolton’s insistence that North Korea follow the Libyan model, which involved the rapid and total dismantlement of that country’s nuclear program, but it was also followed by the overthrow of the country’s leader Moammar Gadhafi some years later.
Unless the U.S. eased up on its uncompromising stance, Pyongyang indicated it would pull out of the June 12 meeting in Singapore between Kim and U.S. President Donald Trump to negotiate an end the North’s nuclear program in exchange for security guarantees and an end to punishing international sanctions.
President Trump later said the Libya model does not apply to North Korea and that Kim Jong Un would remain in power and “be very rich” if he makes a deal to end his country’s nuclear program.
North Korea denounced South Korea, as well, for the joint military drills, calling the Seoul government “ignorant and incompetent,” and suspending working-level bilateral talks last week.