Answer:
J and K are supplementary
Explanation:
Given
The attached image
Required
The true statement
From the attached image, it is hard to determine the values of angles I and L as there are no enough information to determine their values.
However, J and K can be worked easily.
From the image
--- vertically opposite angles
And:
---- angle on a straight line
Substitute:


When two angles add up to 180, the angles are supplementary.
Hence, (c) is correct