Use the graph to answer the question.

Graph of polygon ABCDE with vertices at negative 3 comma 3, negative 3 comma 6, 1 comma 6, 1 comma 3, negative 1 comma 1. A second polygon A prime B prime C prime D prime E prime with vertices at 11 comma 3, 11 comma 6, 7 comma 6, 7 comma 3, 9 comma 1.

Determine the line of reflection.

Reflection across x = 4
Reflection across y = 4
Reflection across the x-axis
Reflection across the y-axis K′(−4, −8)