For each of these arguments, explain which rules of in$-$ ference are used for each step. a$)$ "Doug, a student in this class, knows how to write programs in JAVA. Everyone who knows how to write programs in JAVA can get a high$-$paying job. There$-$ fore, someone in this class can get a high$-$paying job." c$)$ "Each of the $93$ students in this class owns a personal computer. Everyone who owns a personal computer can use a word processing program. Therefore, Zeke, a student in this class, can use a word processing pro$-$ gram."