Which is the missing step in the proof below? There is a 4th row that blank...

Given: ABCD is a parallelogram. ACED is a parallelogram

Prove: ΔABC≅ΔDCE

Answer choices are
A. ΔABC ≅ ΔDCE by the SAS congruence theorem

B. ΔABC ≅ ΔDCE by the ASA congruence theorem

C. ΔABC ≅ ΔDCE by the SSS congruence theorem

D. ΔABC ≅ ΔDCE by the HL congruence theorem