Which of the following is correct for the catch block in Exception Handling? Your answer: O it contains code that is executed when an exception occurs O it is a special method used in exception handling o it allows the user to specify what will happen next in the program O it is not allowed in the same method as a try-block O it executes after finally block Which of the following is a correct statement about implementation of subprograms? Your answer: O Deep access method is faster in accessing the references to distant nonlocals than shallow access. Shallow access method is costly in accessing the references to distant nonlocals than deep access. In deep access method, the activation record instances on the dynamic chain are used for accessing nonlocal references. In the shallow access method, variables declared in subprograms are stored in the activation records of the subprograms for access. Subprogram linkage is more costly for deep access than shallow access method in dynamic scoping. Which of the following best describes reference data types? Your answer: References can never be null O A reference is not allowed to change a reference once allocated O Referencing does not need an explicit referencing operator O References point to an existing variable rather than storing an address O All of the mentioned