Which of these methods of class String is used to extract a substring from a String object?

A. To define namespaces B. To declare variables C. To import external libraries D. To create instances of classes

A. Exits the switch statement B. Skips the current iteration C. Continues to the next iteration D. Throws an exception

A. public B. internal C. protected D. private

A. To declare a constant B. To prevent a variable from changing C. To allow a variable to be changed D. To declare a static variable