Maintaining a daily routine
I think its C - the use of technology to produce living things
A lot of the army crew, if they have to make a trench they would have to send their men to the front line where there is gunfire.
It refers to the desire for self-fulfillment, namely, to the tendency for him to become actualized in what he is potentially. While the theory is generally portrayed as a fairly rigid hierarchy, Maslow noted that the order in which these needs are fulfilled does not always follow this standard progression.
The solution that occurs in your mouth when you eat foods with a high salt content is called a hypertonic solution. This will make the correct answer C.