A mathematical expression that contains functions, operators, constants, and properties, and returns a value to a cell

The security team is assessing the relative security of four IM products. Which of the following sets of features provides the most secure solution?

A. protocol used is IRC over TLS, uses FTP for file exchange and video provided by Flash B. protocol used is Jabber, uses FTP for file exchange and video provided by Flash C. protocol used is XMPP over TLS, uses SCP for file exchange and video provided by H.323 over TLS D. protocol used is SIP, uses RCP for file exchange and video provided by H.323

To create a new file and return a stream that can be used to process the file, use the:

a) CreateFile method of class File b) NewFile method of class File c) Create method of class File d) New method of class File