Prove Triangle congruence

What is the first error Ioana made in her proof?

a. Ioana used an invalid read to justify the congruence of a pair of sides or angles.

b. Ioana only established some of the necessary conditions for a congruence criterion.

c. Ioana established all necessary conditions, but then used an inappropriate congruence criterion.

d. Ioana used a criterion that does not guarantee congruence.

Prove Triangle congruenceWhat is the first error Ioana made in her proofa Ioana used an invalid read to justify the congruence of a pair of sides or anglesb Ioa class=