Sinking crisis: Refers to the excessive worry that young people have when they face problems that should only occur in the next age group. Which of the following is a crisis sinking? ["Whenever I think of the retirement that will start two years later, there is an inexplicable loss and anxiety in Lao Zhang's heart.", 'Xiao Li just admitted to Jiangcheng University and saw the house prices soaring in the surrounding area. He is worried that he cannot afford a house after graduation and cannot settle down.', 'Xiao Huang graduated four or five years and is still single. She is worried that she will find it hard to find the right person if she drags on.', "Xiaoliang and his wife recently couldn't sleep because of their daughter's going to elementary school next year: the school district room of the famous school that they couldn't afford."]