Givens. Statements, proofs

Given: RA bisects ∠TRI; ∠TAR≅∠IAR

Prove: ∠T≅∠I

Statement:

1. RA bisects ∠TRI

2. ∠TRA≅∠IRA

3. ∠TAR≅∠IAR

4. RA≅RA

5.ΔTAR≅ΔIAR

6. ∠T≅∠I

Choose the best answer.

A)1. Given; 2. Definition of midpoint of a segment; 3. Given; 4. Symmetric property; 5. SSS postulate; 6. CPCTC

B)1. Given; 2. Definition of an angle bisector; 3. Given; 4. Commutative property; 5. AAA postulate; 6. CPCTC

C)1. Given; 2. Definition of an angle bisector; 3. Given; 4. Reflexive property; 5. ASA postulate; 6. CPCTC

Can someone help please?