The figure shows two equilateral triangles with a shared side. Can the triangles ΔIHJ and ΔIKJ be proven congruent?
Question 20 options:

A)

Yes, ΔIHJ ≅ ΔIKJ by AAA.

B)

No, ΔIHJ and ΔIKJ aren't congruent because SSA isn't a congruence theorem.

C)

Yes, ΔIHJ ≅ ΔIKJ by SSS.

D)

There isn't enough information.