Item 5 in the figure above indicates the individual layers in the Balloons group.

Which statement about UML class diagrams is true?

a. UML class diagrams can be used to summarize a class’s attributes and operations. b. In the UML, each class is modeled in a class diagram as a rectangle with three compartments. c. The top compartment contains the class name centered horizontally in boldface type and the middle compartment contains the class’s attribute names, which correspond to the data members of a class. d. All of the above are true.

Write a void function called copy_to_screen that copies the contents of a file to the screen. The argument of the function is an ifstream object. Preconditions and postconditions follow: Preconditions: The stream argument for the function has been connected to a file with a call to the member function open. Postcondition: The contents of the file connected to the ifstream argument have been copied to the screen so that the screen is the same as the contents of the file. This function does not close the file.

What will be an ideal response?