Suppose that the following fact is proven by exhaustion. Theorem: Every integer in the range from 49 through 51 is composite. Select the lines that would be included in the proof.

48 = (2)(24), so 48 is composite.

49 = (7)(7), so 49 is composite.

50 = (2)(25), so 50 is composite.

51 = (3)(17), so 51 is composite.

52 = (2)(26), so 52 is composite.