Which of these is a valid use of the reply all feature?

a.
correcting someone's spelling mistake in an e-mail

b.
responding with "i agree" or "me too"

c.
responding with " take me off your list"

d.
none of these

An excel which cell contains =b2 is copied to row below, the same column. what will be the new cell's content

Assume that there is a 4% rate of disk drive failure in a year. a. if all your computer data is stored on a hard disk drive with a copy stored on a second hard disk drive, what is the probability that during a year, you can avoid catastrophe with at least one working drive? b. if copies of all your computer data are stored on three independent hard disk drives, what is the probability that during a year, you can avoid catastrophe with at least one working drive?

In my email i got a message it says a quick message and in message details on who its from its says nicole and under nicole is 50e0bf08e5b671@ualwgypg91wa5wl. uzo9kbud3qjwddygd5.vng -