Dominic was balancing on the fence. No matter how many times he fell off or got hurt, he never learned his lesson. Last spring, he'd sprained his left ankle. Last fall, he'd fractured his right wrist. One summer, he'd spent six weeks with a cast on his leg. He just never learned. His older sister, Sophia, was watching from the porch. She knew that Mom would come out any second and say, "Dominic Salvatore Mazzello, you come in this house immediately."
"Hey, Sophia, watch what I can do!" Dominic yelled from the fence.
He got up on his toes like a gymnast on a balance beam and stretched toward the sky.
"You're going to fall!" Sophia shouted back.
"Oh, I am not! You're just jealous because I can do this and you can't."
Dominic reached higher and higher. Suddenly, his right foot slipped. Then, his left foot slipped. Sophia saw her brother falling, falling, falling. . . .
As Dominic neared the ground, Sophia leaped from the porch, dashed to the fence, and caught her little brother in her arms.
"Nice catch, Wonder Woman," Mom called from the front porch. Sophia and Dominic both smiled. But Dominic stopped smiling as soon as Mom said, "Dominic Salvatore Mazzello, you come in this house immediately."

Why does Mom call Sophia "Wonder Woman"?
A.
because Dominic is always getting rescued
B.
because Dominic reads old comic books
C.
because Sophia resembles Wonder Woman
D.
because Sophia performs a heroic act