Tree branches and the stalks of many plants often contain large amounts of difficult-to-decompose lignin, so the efficiency of using them to refine biofuels is greatly reduced. Currently, a bacterium called Rhodococcus is found. The ability of lignin in other plants, therefore, it is believed that Rhodococcus can be widely used in previously discarded stalks, thereby greatly improving the utilization of biofuels. Which of the following, if true, would best support the above conclusion? ['Rhodococcus can secrete an enzyme that has the ability to decompose lignin, it seems that its secretory ability shows periodic cross-talk.', 'Some fungi also have the ability to break down lignin, and studies have found that the growth of these fungi requires specific temperatures and humidity.', 'Rhodococcus is easy to culture. Currently, Rhodococcus has been genetically sequenced, so Rhodococcus can be used to produce lignin-degrading enzymes on a large scale.', 'Lignin is a high-quality polymer material. So far, more than 95% of the essential elements have been directly discharged into the river or concentrated and burned, and rarely used effectively.']