The true sentence is the following one:
B. Individual productivity is necessary for group productivity.
Imagine a work in a group, where the people all receive their personal tasks that they will later incorporate into the group work. If each person is not productive on their own task then the whole group will not be productive!
1. Sarcastic “so called” shows that what the American dream is not what it is said to be
Was there a text given for the second question? What was it based on?
Add how it has started and what you need to know by searching on the internet
The main reason why you would use the revising strategy called Use Snapshots is because snapshots are some of the easiest way to catch and contain lots of material, especially on a computer desktop.