Select the best suitable means of communication to get informed or to inform others for the given situations (X, Y and Z).
X : Your sister’s marriage has been fixed and you want all your relatives and friends to be present at the wedding.
Y : Your grandfather, suddenly, suffered from a heart attack and your father is in his office.
Z : Incidence of tsunami had occurred in Japan.
| X | Y | Z | |
| A | Radio | Postcard | |
| B | Letter | Telephonic call | Newspaper |
| C | Television | Fax | |
| D | Fax | Newspaper |