Which of the following statements about no-argument constructors and inheritance are correct? (Choose two.)

A. The compiler cannot insert a no-argument constructor into an abstract class.

B. If a parent class does not include a no-argument constructor, a child class cannot declare one.

C. If a parent class declares constructors but each of them take at least one parameter, then a child class must declare at least one constructor.

D. The no-argument constructor is sometimes inserted by the compiler.

E. If a parent class declares a no-argument constructor, a child class must declare a noargument constructor.

F. If a parent class declares a no-argument constructor, a child class must declare at least one constructor.