Final answer:
The correct statement that specifies a number is between -3 and 3 is D) -3 < x < 3, representing the inequality where x is greater than -3 and less than 3.
Step-by-step explanation:
The question asks to identify which statement indicates that a number is between -3 and 3. The correct option that represents this inequality is D) -3 < x < 3, which means x is greater than -3 and less than 3. This is how we express that x is within a range between two numbers, including numbers between them but not the boundary numbers themselves.
None of the other options A) x < 3, B) x - 3, or C) x > 3 adequately express the inequality where x is between -3 and 3.