Which of the following represents a set of integers greater than zero? . {1, 2, 3, 4, 5}. {1, 2, 3, …, 98, 99, 100}. {all positive numbers}. {1, 2, 3, 4, 5, …}

(c) the diagram shows the first three shapes of a matchsticks arrangement.first shape = 3second shape = 5third shape = 7given m represents the number of matchstick used to arrange the n'th shape.(i) write a formula to represent the relation between m and n. express m as the subjectof the formula.(ii) 19 matchsticks are used to make the p'th shape. find the value of p.