Consider the following scenario: Ronald a mechanical engineer is currentlyworking on a project of an agricultural machine. This machine performs varioustasks, which are as follows: * Sprinkling pesticides( 喷杀虫剂 ) * Removing weeds( 除草 ) * Reaping ( 收割 ) * Sowing seeds( 播种 ) Identifythe priority of the threads to be implemented by Ronald in the machine.