Answer:
D. t(x) = 4x - 1
Explanation:
The sequence shows the first four terms. As such, the x coordinates of the graph will be 1, 2, 3, and 4. The y coordinates will be 3, 7, 11, and 15 respectively.
Graphing that, the 4 points all lie on the line 4x - 1, so D is the answer.
The graph I made for this is below.