Given: Which statement is true？（）

AThe code will compile without changes.

BThe code will compile if public Tree（） { Plant（）； } is added to the Tree class.

CThe code will compile if public Plant（） { Tree（）； } is added to the Plant class.

DThe code will compile if public Plant（） { this（"fern"）； } is added to the Plant class.

EThe code will compile if public Plant（） { Plant（"fern"）； } is added to the Plant class.