Answer:
Option A is correct that is Required additional information is ∠BDC and ∠AED are right angles.
Step-by-step explanation:
We need to find an additional information used to to prove ΔCEA ~ ΔCDB
In ΔCEA and ΔCDB
∠ACE = ∠BCD ( common angle in both triangle )
if, ∠AEC = ∠BDC ( both are right angles )
then ΔCEA ~ ΔCDB by AA similarity criteria.
Therefore, Option A is correct that is Required additional information is ∠BDC and ∠AED are right angles.
