Consider a positive integer n. Ch 01 Sec 7 Ex 28 (b) - Proofs Put the steps in correct order to prove that if n is even, then 7n + 4 is even (You must provide an answer before moving to the next part.) Rank the options below. This is 2 times an integer, so it is even. This is 2 times an integer, so it is even. open choices for ranking No answer Since n is even, it can be written as 2k for some integer k. Since n is even, it can be written as 2k for some integer k. open choices for ranking No answer Then 7n + 4 = 14k + 4 = 2(7k + 2). Then 7n + 4 = 14k + 4 = 2(7k + 2). open choices for ranking