A(n) ________ is a visual representation of your information and ideas

Answer the following statements true (T) or false (F)

1) Command-line arguments allow the user to pass information into an app as it begins executing. 2) Passing a reference with keyword ref gives the called method control over the passed reference itself. 3) When a method receives a reference-type object parameter by value, the object is actually passed by value. 4) To protect the reference of an array, it should be passed to methods with keyword val.

A(n) ______________________ is a binary tree in which each node has two children, except for the nodes on the last level, which is completely filled.

A. complete heap B. level binary tree C. spring binary tree D. full binary tree