Which of the following sets shows all the numbers from the set {1, 2.5, 3, 4.5, 5} that make the inequality 3a + 4 ≥ 13 true? (4 points) a {2.5, 3, 4.5} b {1, 2.5} c {3, 4.5, 5} d {4.5, 5}