Problem:OPTIONS:
- They both speak Korean.
- The US needs a mediator.
- Moon is familiar with how to deal with Kim.
- not enough information

SEOUL North Korea's recent threat to pull out of the upcoming nuclear summit with the U.S. has added new urgency to South Korean President Moon Jae-in's visit to Washington next Tuesday. President Moon has played a key role in facilitating the meeting between North Korean leader Kim Jong Un and U.S. President Donald Trump scheduled to be held in Singapore June 12. At the recent inter-Korean summit Moon got Kim to affirm a broad commitment to rid the Korean Peninsula of nuclear weapons and that opened the door for Trump and Kim to negotiate a more detailed agreement to end North Korea's nuclear program. However, uncompromising positions recently voiced by U.S. National Security Adviser John Bolton demanding the North's unilateral disarmament, and by North Korea in response canceling further talks with the South and threatening to pull out of the U.S.-North Korea summit, have put the prospects for continued diplomatic progress in jeopardy. President Trump has tried to reassure the North Korean leadership that a nuclear deal would not weaken the Kim government, but would bolster it. "He'd be in his country, he'd be running his country. His country would be very rich." Trump said Thursday while meeting with NATO Secretary General Jens Stoltenberg in the White House. President Moon, who will meet with Trump in Washington on Tuesday, has said he will try to moderate differences between the U.S. and North Korea over how to achieve denuclearization, while also giving the Kim government the security guarantees and sanctions relief it wants. But the convergence of interests that have brought Moon, Trump and Kim to all agree to give diplomacy a chance seems to be diverging over how to bridge the gap between the U.S. demand for complete denuclearization prior to offering any concessions, and the North's insistence on a step by step process that would ease sanctions early on for incremental measures, such as giving up some nuclear material and allowing in outside inspectors. Question: Why is Moon probably a key in initiating talks with Kim? === The answer to the above question is
****
A: Moon is familiar with how to deal with Kim.

It was hot. The smell of blood already hung heavy in the air. The white sands, imported from the far west mountains of limestone, sucked up the fire of the huge red sun. It was always hot in the south desert. Even in the deep of night the stones of Gazu Kadem kept the city warm. Now, at mid-day, it was at its hottest. A quarter of a million people at the arena didn't make it any cooler. The merchants, nobles, and the slaves lucky enough to attend had waited outside Dan Trex's arena for days. They knew the value of entertainment in such a dark world. They wore cowls to protect themselves from the sun as they waited. Entire businesses thrived on the forced mercantile of the captive audience. Food went for thrice its cost to those waiting near the entrance. Water went for five times as much. The arena was as old as the city, built in the days of the old empire for a king now long forgotten. The octagonal arena was a machine, an engine that built warriors out of the raw material of flesh, blood, and steel. Now, thousands of years later, it still served that purpose. The machine had built Dan Trex's army, half a million of the most ruthless and well trained soldiers to ever walk the planet. While one hundred and fifty thousand civilians and slaves got drunk, gambled, shat, fucked, and slept on the stone steps; one hundred thousand of his men sat in silence wearing black and bronze and watching him as Trex walked out into the arena alone and unhelmed. His soldiers watched the games in silence. They made not a sound when twelve of the most beautiful girls to walk on small bare feet were raped and flayed apart by dark priests in a ritual to Gazu Kadem's god-king, Danken Ovelde. They studied the three-horned desert bull as it gored five slaves. They watched the spear technique of four slave armies as they warred in a single great battle. They watched blades of silver spray fans of red blood into the air. They watched vital organs spill onto the white sands. They heard men and women scream as life left them. They... Question: who is the author === The answer to the above question is
OPTIONS:
- not enough information
- a nobleman
- a passerby
- a solder
not enough information

Problem: OPTIONS:
- A law officer
- not enough information
- Kraamer's brother
- A bounty hunter
Q: The sweet taste of cold and wood smoke hung in the air. Marlin rode low in the saddle, his shoulders curled against the hungry wind. His hat was pulled down tight and his eyes didn't move as he passed the crude shacks at the edge of town. He tied his horse in front of the saloon, unwinding his long body as if a sudden movement might snap it. He turned down the collar of his greatcoat and checked to make sure his big Army Colt was loose in its holster. The saloon door was a single chunk of white pine, still oozing sap, and he had to put his shoulder to it to force it open. The long room inside was quiet, and not much warmer than the street. Clusters of people sat nursing coffee and drinks, talking quietly if they talked at all. Marlin spotted a few farmers the railroad had brought in from Europe: rounded hats, nervous eyes, skin as red as blood. At the far end of the room a half-dozen cowboys turned over cards with patient boredom. Marlin walked up to the bar. "Whiskey," he said, and when the drink came he tossed it straight down and felt it pull his lips into a grimace. He nodded for a refill. When he turned to face the room they were all watching him. "I'm looking for a man named Kraamer," Marlin said. "Anybody here know of him?" One of the cowboys turned casually and rang the spittoon with a stream of tobacco juice. Marlin knew the long, thin face from somewhere, the blond hair that fell limply to his shoulders. He smiled at Marlin and showed his brown-stained teeth. Marlin felt the lines in his own face, the gray in his hair, the chill in his bones. He was too old for this. He set a half dollar on the bar and started for the door. "Don't get in a huff," the bartender said. Marlin looked back. "Kraamer lives about a mile west of town. Follow the railroad and take the first trail south." Question: After the end of this story, Marlin's occupation is probably: === The answer to the above question is
Answer:
not enough information