Hair follicle stem cells are cells that live in the hair follicles for a long time and produce hair for us. Hair follicle stem cells absorb glucose from the blood, and after metabolism, glucose becomes pyruvate. Some of these pyruvates are transported by the cells into mitochondria, and in mitochondria, pyruvate Further metabolism can provide energy for the cells. Another part of pyruvate will undergo subsequent changes in the cell to produce a new metabolite-lactic acid, which can activate hair follicle stem cells and make hair grow faster. According to this, some researchers It is thought that increasing lactic acid content through drugs can treat hair loss. Which of the following, if true, best supports the above conclusion? ['The metabolic function of glucose is an important way for life to repair itself.', 'Lactic acid provided by drugs can directly affect hair follicle stem cells.', 'Artificially increasing lactic acid content will not have other effects on hair follicle stem cells.', 'Reducing pyruvate into mitochondria can make hair follicle stem cells produce more lactic acid.']