Final answer:
The true statement about triangle ABC is sin C = sin A.
Step-by-step explanation:
The true statement about triangle ABC is Option A: sin C = sin A.
In a triangle, the sine function compares the opposite side with the hypotenuse or the side opposite the angle with the hypotenuse. In this case, sin A represents the ratio of the length of side A to the length of the hypotenuse in triangle ABC. Similarly, sin C represents the ratio of the length of side C to the length of the hypotenuse.
Since the sin function compares opposite sides with the hypotenuse, sin A is equal to sin C when looking at triangle ABC. Therefore, sin C = sin A is the true statement about triangle ABC.