<span>Arrival protocols are the type of data protocols that convert data into standard formats that can be used by applications, such as email, Web browsers and Skype</span>
Cloud storage is a service model in which data is maintained, managed, backed up remotely and made available to users over a network (typically the Internet).
I personally feel that e-mail can be used for more business settings and as a more formal approach to things as opposed to a text, but option C seems to be more of an opinion. I would go with C or D.
Answer:
a. daily
Explanation:
A webpage gets a new modification date whenever any change is made. This is irrespective of whether the change is large or small, significant or insignificant. Any update to the webpage will change its modification date. But this change will not be carried out automatically everyday unless an actual modification is carried out on that day.Otherwise it will continue to carry the modification date corresponding to the day of last update.