China's employment and re-employment situation remains tough with a surge this year in the number of graduates hitting the job market and in unemployment in general, a senior official said. The country's registered average unemployment rate in urban areas reached 4 percent last year and is expected to go higher this year, Labour and Social Security Minister Zheng Silin told Xinhua yesterday. There are nearly 14 million laid-off workers in urban areas so far. And more than 10 million new graduates are predicted to enter the work force, Zheng said. To make things worse, the nation's agricultural adjustment has forced more than 150 million rural workers to quit farming. Many of them will head to the cities to seek employment, posing uncertainties for the State, he said. Zheng, who was appointed as the minister during the first session of the 10th National People's Congress in March, has urged his departments nationwide to do more to assist laid off workers to restart their lives. What is the most appropriate rifle for this passage about China's employment?