Final answer:
The set that is equal to 3, 5, 7, 9, 11, 13 is represented by option a. {x ∈ Z: 3 < x < 14}.
Step-by-step explanation:
The set that is equal to 3, 5, 7, 9, 11, 13 is represented by option a. {x ∈ Z: 3 < x < 14}. This set includes all integers (x) that are greater than 3 and less than 14. In this case, the set includes the numbers 5, 7, 9, 11, and 13, which are the given numbers.