Answer:
A.
Explanation:
<JEK is complementary to <DFH.
From the figure we see that angles DFH and HFG are complementary.
Since angles JEK and HFG are both complementary to <DFH, then
<JEK is congruent to <HFG
<HFG is vertical to <CFL, so angles HFG and CFL are congruent.
That makes angles JEK and CFL complementary.
Answer: A.