North Korea's release of three U.S. citizens may help pave the way for talks between Donald Trump and Kim Jong Un, but questions remain as to whether those talks will succeed. At the White House on Wednesday, Trump continued to speak cautiously about the coming summit, even while praising the North Korean leader for the prisoner release. "Everything can be scuttled," Trump told reporters. "A lot of things can happen a lot of good things can happen, [and] a lot of bad things can happen." North Korea on Wednesday granted amnesty to three Americans of Korean descent. They had been accused of espionage or trying to overthrow the government, charges widely seen as bogus. Pyongyang has detained at least 16 Americans over the past two decades, often attempting to use them as bargaining chips. All were eventually released, although Otto Warmbier, a 22-year-old college student, died shortly after returning to the United States last year. A White House statement Wednesday praised North Korea's latest prisoner release as a "positive gesture of goodwill" ahead of the Trump-Kim summit, which is expected to take place as soon as next month. South Korea's presidential office said Pyongyang's decision was a "very positive" sign for a successful North Korea-U.S. meeting. The freeing of the prisoners coincided with a visit to Pyongyang by U.S. Secretary of State Mike Pompeo, who declined to say whether the release was a U.S. precondition for holding talks with the North. "I don't know the answer to that," Pompeo told reporters on the flight home. "It would have been more difficult [had the prisoners not been released]. ... I'm glad that we don't have to confront that." It's not clear what, if anything, the U.S. gave up in exchange for the prisoners. It's not even clear a concession was needed, since North Korea has for decades sought the presumed legitimacy provided by a summit with a sitting U.S. president. Why did South Korea announce a "very positive" sign for a successful North Korea-U.S. meeting? Pick the correct answer from the following options: A. North Korea released US prisoners B. not enough information C. Otto Warmbier died D. Mike Pompeo visited
Answer:
A