MCQ PracticeWhat is output of the following program? int main() { fork(); fork(); fork(); if (wait(0) == -1) printf("leaf childn"); }Subject: Computer Science EngineeringTopic: LinuxA"leaf child" will be printed 1 timesB"leaf child" will be printed 3 timesC"leaf child" will be printed 4 timesD"leaf child" will be printed 8 timesCorrect Answer: CPractice 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