which is the bottom line: The bottom line is the minimum condition or limit that must be adhered to. Everything in the world has a bottom line. Crossing the bottom line means qualitative change; if you do not pay attention to the bottom line, you are pushing yourself to the Jedi. According to the above definition, which of the following situations is "crossed the line"? (). ['A steel plant purchased ore and began to prepare for the southern plant, and later purchased the northern plant.', 'Police officer Xiao Liu caught the suspect during the handling of the case. The criminal suspect gave him 10,000 yuan, and Xiao Liu released the suspect.', 'Li Hong and her husband are in conflict, go to court to apply for divorce.', 'Wang, a lawyer from Hongda Law Firm, lost the key evidence of a major case, which resulted in the acquittal of the suspect in this case, which caused a great social impact.']