MCQ PracticeWhat is the output of the following code: os=Unix echo 1.$os 2."$os" 3.'$os' 4.$osSubject: Computer Science EngineeringTopic: LinuxA1.Unix 2.Unix 3.Unix 4.UnixB1.Unix 2.Unix 3.$os 4.UnixC1.Unix 2.Unix 3.Unix 4.$osD1.Unix 2.$os 3.$os 4.$osCorrect Answer: BPractice QuizBack to MCQsRelated MCQsCurrent flows in a circuit whenEighttenths coulomb passes a point in 4 s. The current in amperes isThe unit of electrical charge is the
