Within parentheses, catch blocks can have _____ A. no arguments B. one argument C. two arguments D. as many arguments as necessary

The correct answer is: B. one argument

A catch block is a block of code that is executed when an exception is thrown. The argument to a catch block is the object that represents the exception.

The following is an example of a catch block:

try {
// code that might throw an exception
} catch (IOException e) {
// handle the exception
}

In this example, the catch block will be executed if the code in the try block throws

A catch block can only have one argument. If an exception is thrown that does not match the type of the argument to the catch block, the exception will be propagated up the call stack.

The other options are incorrect because:

• A catch block cannot have no arguments.
• A catch block cannot have two arguments.
• A catch block cannot have as many arguments as necessary.