Answer:
D.
Explanation:
![d<4.](https://img.qammunity.org/2022/formulas/mathematics/middle-school/n7alhvcjxh7203yjswg5omqvjqwv9qjcmn.png)
This inequality does not have ≤ nor ≥. This indicates that when the inequality is graphed on a number line, it will be an open circle.
Using this information, we can eliminate options A, B, and C.
This inequality also indicates that 'd' is less than 4; 4 is greater than 'd.'
Since 'd' is less than 4, the line would go toward the numbers less than 4.