The octet rule suggests that atoms

a) want to complete their energy level
b) want to pair up in eights
c) want to have eight energy levels

Option (A) is the correct answer.

Explanation:

According to the octet rule, it has been stated that every atom or element must have eight electrons in its valence shell, that is, the outermost shell.

For example, atomic number of chlorine is 17 and its electronic distribution is 2, 8, 7. So, in order to attain stability chlorine will readily react with another atom to gain an electron.

Therefore, after gaining an electron there will be in total 8 electrons in chlorine's valence shell. Hence, it will follow octet rule.

Thus, we can conclude that the octet rule suggests that atoms want to complete their energy level.

answer: - few nutrients

high pressure

low temperatures

explanation: 1. few nutrients:   open-ocean zone is located way far from the land, which is the main source of the essential nutrients.2. high pressure: pressure increases by 1 atmosphere for every 10 meters increase in depth.3. ample sunlight: a large fraction of the sunlight is reflected back to the atmosphere from the sea surface. 4. varying salinity: below the thermocline, the water is isolated from the atmosphere so the salinity remains stable over the year.5. low temperatures:   the temperature of open-ocean zone ranges from a low of -2°c to an average of 17°c