What did Trump probably think of his visit to Singapore?

Choices:
A. He probably thought it was somewhat productive
B. He probably thought it was a waste of time
C. He probably thought it was completely productive
D. not enough information
not enough information
SEOUL, SOUTH KOREA — The conservative leader of South Korea’s main opposition party on Thursday spoke out against the upcoming U.S.–North Korea summit. He also voiced concern that political considerations are driving U.S. President Donald Trump and South Korean President Moon Jae-in to compromise joint security for more false denuclearization promises from North Korean leader Kim Jong Un.
“I am rather pessimistic about whether this negotiation will work out well or not. The only means for North Korea to maintain its regime is its nuclear program. The moment that North Korea gives up its nuclear program, and the moment it opens up to reform, the Kim Jong Un regime will collapse,” said Hong Joon-pyo, the chairman of the Liberty Korea Party.
On June 12, Trump and Kim will meet in Singapore to try to reach an agreement to end the North’s threatening nuclear weapons program in exchange for economic incentives and security guarantees that could include a formal peace treaty to replace the armistice that has been enforced since the end of the Korean War in 1953.
Many South Korean conservatives had voiced strong support for Trump’s “maximum pressure” polices to force Pyongyang to unilaterally give up its nuclear weapons through tough international sanctions in place that ban 90 percent of the country’s trade, and the threat of military action.
But they have been troubled by recent statements coming from the Trump administration indicating the United States may be willing to soften its demands for the complete, verifiable and irreversible dismantlement (CVID) of the North’s nuclear program before offering any sanctions relief.
Hong is worried that Trump may seek a deal that would quickly end the North’s intercontinental ballistic missile program that directly threatens the U.S., and leave the regional nuclear threat to be resolved later.
Trump seems overly intent to achieve a diplomatic breakthrough, Hong said, to shift the media focus away from the ongoing special prosecutor investigation he is facing over Russia’s alleged involvement in the 2016 election. Trump has strongly denied any allegations of collision with Moscow and has called the investigation a politically motivated “witch hunt.”